Temperature can be expressed as derived quantity in terms of
A
length and mass
B
mass and time
C
length, mass and time
D
None of these
Question 2Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 3Single Answer
Dimensions of impulse are
A
[MLT –1]
B
[MLT²]
C
[MT–2]
D
[ML–1T–3]
Question 4Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these
Question 5Single Answer
One Nanometer is equal to
A
10–9m
B
10–6m
C
10–10m
D
10–3m
Question 6Single Answer
Maxwell is the unit of
A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability
Question 7Single Answer
Which of the following is derived physical quantity ?
A
Mass
B
Velocity
C
Length
D
Time
Question 8Single Answer
What are the units of magnetic permeability ?
A
Wb A–1 m–1
B
Wb–1 Am
C
Wb A m–1
D
Wb A–1 m
Question 9Single Answer
The dimensions of pressure gradient are
A
[ML–2 T–2]
B
[ML–2 T–1]
C
[ML–1 T–1]
D
[ML–1 T–2]
Question 10Single Answer
The dimensions of Rydberg's constant are
A
[M0L–1T]
B
[MLT–1]
C
[M0 L–1T0]
D
[ML0 T2]
Question 11Single Answer
'Farad' is the unit of
A
resistance
B
conductance
C
capacitance
D
inductance
Question 12Single Answer
S.I. unit of surface tension is
A
degree/cm
B
N/m
C
N/m²
D
Nm
Question 13Single Answer
Which one of the following pairs does not have the same dimension ?
A
Potential energy and Kinetic energy
B
Density and specific gravity
C
Focal length and height
D
Gravitational force and frictional force
Question 14Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
A
Angular momentum
B
Stress
C
Strain
D
Work
Question 15Single Answer
The symbol of SI unit of inductance is H. It stands for
A
Holm
B
Halogen
C
Henry
D
Hertz
Question 16Single Answer
Light year is a measure of
A
time
B
distance
C
total amount of light falling on the Earth in a year
D
average intensity of light falling on the Earth in a year
Question 17Single Answer
Which one of the following is not a dimension less quantity ?
A
Strain
B
Relative density
C
Frequency
D
Angle
Question 18Single Answer
The dimensions of universal gas constant are
A
[L² M¹ T–2 K–1]
B
[L¹ M² T–2 K–1]
C
[L¹ M¹ T–2 K–1]
D
[L² M² T–2 K–1]
Question 19Single Answer
The dimensions of magnetic moment are
A
[L²A¹]
B
[L²A–1]
C
[L²/A³]
D
[LA²]
Question 20Single Answer
The dimensions of Wien's constant are
A
[ML0TK]
B
[M0LT0K]
C
[M0L0TK]
D
[MLTK]
Question 21Single Answer
The dimensional formula of wave number is
A
[M0L0T–1]
B
[M0L–1T0]
C
[M–1 L–1 T0]
D
[M0 L0 T0]
Question 22Single Answer
The dimensional of Hubble ‘s wave number is
A
[T–1]
B
[M0L0T–2]
C
[MLT4]
D
[MT–1]
Question 23Single Answer
The dimensions of solar constant is
A
[M0L0T0]
B
[MLT–2]
C
[ML²T–2]
D
MT–3
Question 24Single Answer
The dimensional formula for entropy is
A
[MLT–2K¹]
B
[ML2 T-2]
C
[ML²T–2K–1]
D
[ML²T–2K]
Question 25Single Answer
Dimension of specific heat are
A
[ML² T–2 K]
B
[ML² T–2 K–1]
C
[ML²T²K–1]
D
[L²T–2K–2]
Question 26Single Answer
The physical quantity which has the dimensional formula [M¹T–3] is
A
surface tension
B
solar constant
C
density
D
compressibility
Question 27Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
A
Potassium
B
Caesium
C
Calcium
D
Magnesium
Question 28Single Answer
Which one of the following is the value of one nanometer ?
A
10–7 cm
B
10–6 cm
C
10–4 cm
D
10–3 cm
Question 29Single Answer
What is the unit of pressure ?
A
Newton/sq. meter
B
Newton–meter
C
Newton
D
Newton/meter
Question 30Single Answer
The unit of pressure is
A
kg/cm²
B
kg/cm
C
kg/mm
D
kg/cm3
Question 31Single Answer
Which one of the following quantities doe not have unit ?
A
Stress
B
Force
C
Strain
D
Pressure
Question 32Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
A
MLT–2K
B
MLT–2K–2
C
MLT–3K
D
MLT–3K–1
Question 33Single Answer
Which of the following is the unit of molar gas constant ?
A
JK–1 mol–1
B
Joule
C
JK–1
D
J mol–1
Question 34Single Answer
Density of liquid is 16.8 g cm–3. Its value in the International System of Units is
A
16.8 kgm–3
B
168 kgm–3
C
1680 kgm–3
D
16800 kgm–3
Question 35Single Answer
The dimensional formula of couple is
A
[ML² T–2]
B
[MLT²]
C
[ML–1T–3]
D
[ML–2T–2]
Question 36Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
A
7.1 J
B
7.06 J
C
7.0 J
D
7 J
Question 37Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
A
65.8068
B
65.807
C
65.81
D
65.8
Question 38Single Answer
When 97.52 is divided by 2.54, the correct result is
A
38.3937
B
38.394
C
38.39
D
38.4
Question 39Single Answer
Which of the following is the most accurate ?
A
200.0m
B
20 × 10¹ m
C
2×10²m
D
data is inadequate
Question 40Single Answer
The area of a square is 5.29 cm². The area of 7 such square taking into account the significant figures is:
A
37cm²
B
37.030 cm²
C
37.03 cm²
D
37.0 cm²
Question 41Single Answer
The SI unit of coeffient of mutual inductance of a coil is
A
henry
B
volt
C
farad
D
weber
Question 42Single Answer
The S.I. unit of pole strength is
A
Am²
B
Am
C
Am–1
D
Am–2
Question 43Single Answer
Which is dimensionless ?
A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work
Question 44Single Answer
The expression [ML–1T–2] does not represent
A
pressure
B
power
C
Stress
D
Young's modulus
Question 45Single Answer
The dimensional formul of current density is
A
[M0L–2T–1Q]
B
[M0L2T1Q–1]
C
[MLT–1Q]
D
[ML–2T–1Q²]
Question 46Single Answer
Match the List – I with List – II
List - I List - II
(Units) (Physical quantity)
A. Watt 1. Electric charge
B. Tesla 2. Power
C. Coulomb 3. Luminous intensity
D. Candela 4. Magnetic field
Select the correct answer from the codes given below :
A
A B C D
1 4 1 3
B
1 2 3 4
C
1 2 4 3
D
2 4 3 1
Question 47Single Answer
Match the List – I with List – II
List - I List - II
(Physical quantity) (Units)
A. Power 1. kg ms–1
B. Energy 2. kg m²s–1
C. Momentum 3. Nm–2
D. Pressure 4. kW
5. kWh
Select the correct answer from the codes given below :
A
A B C D
4 5 1 3
B
4 5 1 2
C
5 4 1 2
D
5 4 2 3
Question 48Single Answer
What is the correct sequence in which the lengths of the following units increase ?
(1) Angstrom
(2) Micron
(3) Nanometer
Select the correct answer from the codes given below :
A
1, 2, 3
B
3, 1, 2
C
1, 3, 2
D
2, 3, 1
Question 49Single Answer
Match the List – I with List – II
List - I List - II
(Physical quantitiy) (Units)
A. Density 1. [MLT–2]
B. Force 2. [ML–3]
C. Energy 3. [MLT–1]
D. Momentum 4. [ML2T–2]
Select the correct answer from the codes given below :
A
A B C D
3 2 4 1
B
1 2 3 4
C
2 1 4 3
D
3 2 1 4
Question 50Single Answer
Match the List – I with List – II
List - I List - II
(Physical quanitity) (Units)
A. Solid angle 1. pascal
B. Impulse 2. Steradian
C. Viscosity 3. Newton–second
D. Pressure 4. Pascal–second
Select the correct answer from the codes given below :
A
A B C D
2 4 3 1
B
2 3 4 1
C
1 4 3 2
D
1 3 4 2
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Technical Paper
Question 51Single Answer
Which of the following is most accurate ?
A
A screw gauge of least count 0.001 mm
B
A screw gauge having pitch 1 mm and 50 divisions on circular scale
C
A vernier callipers of least count 0.01 mm
D
Vernier callipers having 20 divisions on the sliding scale (vernier scale) coinciding 19 divisions on the main millimetre scale
Question 52Single Answer
Which of the following quantities has a unit but dimensionless ?
A
Strain
B
Reynolds number
C
Angular displacemet
D
Poisson's ratio
Question 53Single Answer
The displacement of a body at a particular second n is given by the expression The dimensional formula of Snth in this equation is
A
[M¹L0T¹]
B
[M0L1T0]
C
[M0L¹T–1]
D
[M0L0T0]
Question 54Single Answer
The division of energy by time is X. The dimensional formula ofX is same as that of
A
momentum
B
power
C
torque
D
electric field
Question 55Single Answer
The dimensions of electromotive force in terms of correntA are
A
[MT-2 A-2]
B
[ML2T-2 A2]
C
[ML2T-2 A -2]
D
[ML2T3 A-1]
Question 56Single Answer
[MLT-1] + [MLT-1] = ………………
A
[M0L0T0]
B
[MLT-1]
C
2[MLT-1]
D
None of these
Question 57Single Answer
Which physical quantities have same dimensions ?
A
Moment of couple and work
B
Force and power
C
Latent heat and specific heat
D
Work in power
Question 58Single Answer
life is charge, V the potential difference, T the temperature, then the units of are the same as that of
A
planck’s constant
B
stefan’s constant
C
Boltzmann constant
D
gravitational constant
Question 59Single Answer
in the eqn. (V - b) = constant, the unit of a is
A
dyne × cm5
B
dyne × cm4
C
dyne × cm3
D
dyne × cm2
Question 60Single Answer
The least count of an instrument is 0.01 cm. Which of the following reding denotes the one, measured by this instrument ?
A
1.04 cm
B
2.001 cm
C
3.1 cm
D
None of these
Question 61Single Answer
Match the List – I and List – II
List – I List – II
A. Wavelength 1. Herze
B. Energy 2. Angstrom
C. Intensity of sound 3. Joule
D. Frequency 4. Decibel
Select the correct answer from the codes given below :
A
A B C D
2 3 4 1
B
1 2 3 4
C
2 3 1 4
D
2 1 3 4
Question 62Single Answer
Match the List – I and List – II
List – I List – II
A. Temperature 1. Kelvin
B.Power 2. Watt
C.Pressure 3. Pascal
D.Force 4. Newton
Select the correct answer from the codes given below :
A
A B C D
2 1 3 4
B
1 2 4 3
C
1 2 3 4
D
2 1 4 3
Question 63Single Answer
Match the List – I and List – II
List – I List – II
Acceleration 1. Joule
Electric current 2. Newton second
Work done 3. Ampere
Impulse 4. Metre per sec2
Select the correct answer from the codes given below :
A
A B C D
1 2 3 4
B
2 3 4 1
C
4 3 1 2
D
3 4 1 2
Question 64Single Answer
Which one of the following statements is correct ?
A
The measurement of mass taken by a spring weighing balance is correct at the place where the spring balance is calibrated for
B
The mesurment of mass taken by a spring weighing balance is correct at the all places
C
The measurement of mass taken by a spring weighing balance is correct at the place where the acceleration due to gravity is same with the place where the spring balance is calibrated for
D
A sping balance cannot be used to mesure mass at any place
Question 65Single Answer
Which one of the following statements is not correct ?
A
The SI unit charge is ampere – second
B
Debye is the unit of dipole moment
C
Resistvity of a wire of length / and area of crosssection a depends upon both / and a
D
The kinetic energy of an length of mass in kg and charge / coulomb when accelerated through a potential difference of V volt, is joule
Question 66Single Answer
If a body is moving at constant speed in a circular path, its
A
velocity is constant and its acceleration is zero
B
velocity and acceleration are both changing direction only
C
velocity and accleration are both increaing
D
velocity is constant and acceleration is changing direction
Question 67Single Answer
A graph is plotted showing the velocity of a car as a function of time. If the graph is a straight line, it means that
A
the car started at rest
B
acceleration was constant
C
acceleration was increasing
D
velocity was constant
Question 68Single Answer
If a car is traveling north on a straight road and its brakes are applied, it will
A
have no acceleration
B
accelerate to the south
C
accelerate to the north
D
accelerate either east or west
Question 69Single Answer
An object moves with a uniform velocity when
A
the forces acting on the object are balanced
B
there is no external force on it
C
Both of (a) and (b)
D
Either (a) or (b)
Question 70Single Answer
The acceleration of a car that speeds up from 12 meters per second to 30 meters per second in 15 seconds
A
2.4 m/s²
B
1.2 m/s²
C
2 m/s²
D
5.2 m/s²
Question 71Single Answer
A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distances s1 in the first 10 seconds and distances s2 in the next 10 seconds, then
A
s2 = s1
B
s2 = 2s1
C
s2 = 3s1
D
s2 = 4s1
Question 72Single Answer
Motion of an object is the change in position with respect to a reference point known as
A
Origin
B
initial position
C
final position
D
distance
Question 73Single Answer
Displacement is the
A
shortest distance between initial and final position
B
the actual distance between initial and final positions
C
the distance travelled by the object
D
distance traveled by the object in a unit time
Question 74Single Answer
An object has traveled 10 km is 15 minutes, its displacement will be
A
10 km
B
Can be zero
C
More than 10 km
D
All of the Above
Question 75Single Answer
If an object covers equal distances in equal intervals of time, it is said to be in
A
Circular Motion
B
Uniform Motion
C
Oscillatory Motion
D
Non– uniform Motion
Question 76Single Answer
Average velocity of an object is obtained by.
A
Dividing the total distance traveled b the total time taken
B
Half of the sum of the initial velocity and the final velocity
C
Both (a) and (b)
D
None of the above
Question 77Single Answer
Negative value of acceleration signifies.
A
The velocity is increasing
B
The velocity is decreasing
C
The velocity remains the same
D
The object comes to rest
Question 78Single Answer
In distance–time graphs.
A
Distance is taken along the X–axis
B
Time is taken along the Y–axis
C
Straight line indicates uniform motion
D
Straight line indicates non–uniform motion
Question 79Single Answer
In velocity – time graphs.
A
Velocity is taken along the Y–axis and Time is taken along the X–axis
B
Straight line indicates uniform acceleration
C
Straight line parallel to x–axis indicates uniform motion
D
All of the above
Question 80Single Answer
The equation (s) of motion can be represented as.
A
V = u + at
B
C
2as = v² – u²
D
All of these
Question 81Single Answer
A train travels 40 km at a uniform speed of 30 km h–1. Its average speed after traveling another 40 km is 45 km h–1 for the whole journey. Its speed in the second half of the journey is.
A
45 km h–1
B
90 km h–1
C
60 km h–1
D
None of these
Question 82Single Answer
A man walks on a straight road from his home to market 2.5km. away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to –
A
5 km/h
B
25/4 km/h
C
30/4 km/h
D
45/km/h
Question 83Single Answer
A ball is dropped from a window 24 meters high. How long will it take to reach the ground ?
A
2.2 s
B
1.2 s
C
4.5 s
D
0.2s
Question 84Single Answer
Mohan takes 20 minutes to cover a distance of 3.2 kilometers due north on a bicycle, his velocity in kilometer/hour-
A
8.1
B
9.6
C
1.2
D
7.2
Question 85Single Answer
A Pitcher throws his fastball horizontally at 42.1 meters per second. How far does it drop before crossing the plate, 18.3 meters away ?
A
0.8 m
B
1.2m
C
2.2m
D
0.93 m
Question 86Single Answer
Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, then–
A
Velocity of A is more than B at the ground
B
Velocity of B is more than A at the ground
C
Both A and B strike the ground with same velocity
D
None of these
Question 87Single Answer
A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in T/3 seconds–
A
h/9 meters from the ground
B
7h/9 meters from the ground
C
8h/9 meters from the ground
D
17h/18 meters from the ground
Question 88Single Answer
When a bus suddenly takes a turn, the passengers are thrown outwards because of-
A
inertia of motion
B
acceleration of motion
C
speed of motion
D
Both (b) and (c)
Question 89Single Answer
A thief snatches a purse and runs due west, going 6.0 meter per second. A policeman, 15 meters to the east, sees the event and gives chase. If the officer is a good sprinter, going at 8.5 meters per second, how far does he have to run to catch the thief.
A
12 m
B
51 m
C
61 m
D
55 m
Question 90Single Answer
A car going at 24 meters per second passes a motorcycle at rest. As it passes, the motorcycle start up, accelerating at 3.2 meters per second squared. If the motorcycle can keep up that acceleration, how long will take for it to catch the car.
A
12 s
B
14s
C
20s
D
18s
Question 91Single Answer
The initial velocity of a body is 15 m/s. If it having an acceleration of 10 m/s², then the velocity of body after 10 seconds from start-
A
110 m/s
B
105 m/s
C
120 m/s
D
115 m/s
Question 92Single Answer
Which of the following can be zero, when a particle is in motion for some time ?
A
Distance
B
Displacement
C
Speed
D
None of these
Question 93Single Answer
The numerical ratio of average velocity to average speed is.
A
always less than one
B
always equal to one
C
always more than one
D
equal to or less than one
Question 94Single Answer
A passenger in a moving train tosses a coin. If the coin falls behind him, the train must be moving with.
A
an acceleration
B
a deceleration
C
a uniform speed
D
any of the above
Question 95Single Answer
A body is imparted motion from rest to move in a straigh line. If it is then obstructed, by an opposite force, then.
A
the body may necessarily change direction
B
the body is sure to slow down
C
the body will necessarily continue to move in the same direction at the same speed
D
None of these
Question 96Single Answer
Which of the following decreases in motion along a straight line with constant retardation while the body is moving away from the origin ?
A
Speed
B
Acceleration
C
Displacement
D
None of these
Question 97Single Answer
Which of the following is not an example of linear motion ?
A
An aeroplane moving on a straight track with increasing speed
B
A body in uniform circular motion
C
Wheel rotating at uniform speed on road
D
A body rolling down an inclines plane
Question 98Single Answer
Which of the following changes when a particle is moving with uniform velocity ?
A
Speed
B
Velocity
C
Acceleration
D
Position vector
Question 99Single Answer
Which one out of the following statement is false ?
A
A body can have zero velocity and still be accelerated
B
A body can have a constant velocity and still have a varying speed
C
A body can have a constant speed and still have a varying velocity
D
The direction of the velocity of a body can change when its acceleration is constant
Question 100Single Answer
What determines the nature of the path followed by the particle.
A
speed
B
velocity
C
acceleration
D
both (b) and (c)
Question 101Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 102Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiO4
D
Ca3(PO4)2
Question 103Single Answer
What is the reson for white cement to be white ?
A
It does not contain carbon
B
It does not contain silicon
C
It does not contain iron
D
It does not contain calcium
Question 104Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 105Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphate
Question 106Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 107Single Answer
Which one of the following chemicals is used in beauty parlours for hair – setting ?
A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron based
Question 108Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
A
Magnesium oxide
B
Magnesium carbonate
C
Magnesium chloride
D
Magnesium sulphate
Question 109Single Answer
Which one of the following substances is used in the manufacture of safety matches ?
A
Red phosphorus
B
White phosphorus
C
Phosphorus trioxide (P2O3)
D
Black phosphorus
Question 110Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
A
Nylon –6, 6
B
Rayon
C
Kevlar
D
Dacron
Question 111Single Answer
Which one of the following is another name of RDX
A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite
Question 112Single Answer
Which one of the following is used as an explosive ?
A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine
Question 113Single Answer
Flint glass is obtained from which of the following ?
A
Zinc and barium borosilicate
B
Sand, red lead and potassium carbonate
C
Sodium aluminium borosilicate
D
Pure silica and zinc oxide
Question 114Single Answer
Which one of the following correctly defines the state of glass ?
A
Crystalline solid
B
Super cooled liquid
C
Condensed gas
D
Liquid crystal
Question 115Single Answer
Which one of the following is not used as fertilizer ?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphate
Question 116Single Answer
Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?
A
Lithium
B
Sodium
C
Rubidium
D
Caesium
Question 117Single Answer
Which one of the following is NOT true for bleaching powder ?
A
It is used as a reducing agent in chemical industries
B
It is used for bleaching wood pup in paper factories
C
It is used for disinfecting drinking water
D
It is used for bleaching linen in textile industry
Question 118Single Answer
Hard glass having the same ingredientsas soft glass excepts.
A
hard glass have Na in place of K
B
hard glass having K in place of Na
C
hard glass having both Na and K
D
None of the above
Question 119Single Answer
A complete fertilizer provides
A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P
Question 120Single Answer
Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.
A
sodium hydrogen phthalate
B
magnesium hydroxide
C
calcium hydroxide
D
manganese acetate
Question 121Single Answer
Annealing of glass is done to.
A
make it brittle
B
make it opaque
C
make it transparent
D
None of the above
Question 122Single Answer
Petrochemicals are obtained from.
A
coal
B
petroleum
C
coal tar
D
All of these
Question 123Single Answer
The use of chemicals for treatment of diseases is called as.
A
isothermotherapy
B
angiotherapy
C
physiotherapy
D
chemotherapy
Question 124Single Answer
Which of the following is a hypnotic drug ?
A
luminal
B
salol
C
catechol
D
chemisol
Question 125Single Answer
Teflon is a polymer of which of the following monomers ?
A
Tetrafluoroethylene
B
Vinyl chloride
C
Acetylene dichloride
D
None of the above/More than one of the above
Question 126Single Answer
LPG used as domestic fuel chiefly contains–
A
Methane
B
Propane
C
Ethylene
D
Butane
E
None of the above/More than one of the above
Question 127Single Answer
Glass is a.
A
liquid
B
colloid
C
non–crystalline amorphous solid
D
crystalline solid
Question 128Single Answer
Which one of the following acids is used for etching glass ?
A
H2SO4
B
HNO3
C
HF
D
HCI
Question 129Single Answer
What is the purpose of adding plasticizers in paint manufacturing process ?
A
They act as a film–forming constituent
B
They reduce the viscosity
C
They prevent the polymerization and condensation
D
They provide elasticity to the film and minimize its cracking
Question 130Single Answer
Which raw material is used in the preperation of soft glass ?
A
K2CO3, SiO2, CaCO3
B
K2CO3, SiO2, PbCO3
C
Na2CO3, SiO2, CaCO3
D
Na2CO3, SiO2, PbO
Question 131Single Answer
What is the composition of nitrolim – a chemical fertilizer ?
A
Nitrogen and limestone
B
Calcium carbide and nitrogen
C
Calcium carbide and carbon
D
None of above
Question 132Single Answer
the major component used in preparation of different type of glasses is.
A
Silica
B
Sodium borate
C
Calcium silicate
D
Sodium silicate
Question 133Single Answer
Salts of which of the following elements provide colours to fireworks ?
A
Zinc and sulphur
B
Potassium and mercury
C
Strontium and barium
D
Chromium and nickel
Question 134Single Answer
Given below are two statements :
Statement I : Phenyl is used as a household germicide.
Statement II : Phenyl is phenol derivative and phenol is an effective germicide.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 135Single Answer
Given below are two statements :
Statement I : Coal–based thermal power stations contribute to acid–rain.
Statement II : Oxides of carbon are emitted when coal burns.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are individually correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are individiaully correct but Statement II is not the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 136Single Answer
Terfenadine is commonly used as a/an.
A
transquilizer
B
antihistamine
C
antimicrobial
D
antibiotic
Question 137Single Answer
Which one of the following is not a tranqualizer ?
A
Equanil
B
Veronal
C
Salvarsan
D
Serotonin
Question 138Single Answer
Barbituric acid and its derivatives are well known.
A
antipyretics
B
analgesics
C
antiseptics
D
tranquilizers
Question 139Single Answer
Which one among is not an analgesic ?
A
Ibuprofen
B
Naproxen
C
Aspirin
D
Valium
Question 140Single Answer
Various phenol derivatives, tincture of iodine (2 – 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.
A
antiseptics
B
disinfectants
C
analgesics
D
antipyretics
Question 141Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
A
o–chlorophenozylenol + terpeneol
B
o–cresol + terpeneol
C
phenol + terpeneol
D
chloroxylenol + terpeneol
Question 142Single Answer
Which of the following is not an antiseptic drug ?
A
Iodoform
B
Dettol
C
Gammexene
D
Genatian violet
Question 143Single Answer
Which one of the following substances is made from natural raw materials ?
A
Rayon
B
Nylon
C
Polyster
D
Polystyrene
Question 144Single Answer
The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc. is.
A
nylon
B
teflon
C
orlon
D
bakelite
Question 145Single Answer
The cleaning of dirty clothes by soaps and detergents is deue to a type of molecules called surfactants, which are present in soaps and detergents. The surfactant molecules remove the dirt by.
A
making the cloth slippery
B
producing some gases between the dirt and the cloth
C
dissolving the dirt
D
forming some aggregates of themselves and take away the dirt in the core of the aggregates
Question 146Single Answer
Contact lenses are made from.
A
polyvinyl chloride
B
polystyrene
C
lucite
D
teflon
Question 147Single Answer
On of the occupational health hazards commonly faced by workers of ceramics, pottery and glass industry is.
A
stone formation in gall bladder
B
melanoma
C
silicosis
D
stone formation in kidney
Question 148Single Answer
vermicompost is an/a.
A
inorganic fertilizer
B
toxic substance
C
organic bio fertilizer
D
synthetic fertilizer
Question 149Single Answer
The macro nutrients provided by inorganic fertilizer are.
A
carbon, iron and boron
B
magnesium, manganese and sulphur
C
magnesiu, zinc and iron
D
nitrogen, phosphorus and potassium
Question 150Single Answer
Which one of the following statement is not correct ?
A
Water starts boiling when its vapour pressure becomes equal to amospheric pressure
B
Water is known as universal solvent
C
Permanent hardness of water is due to presence of MgCl2, CaCl2, MgSO4 and CaSO4
D
Density of ice is greater than that of water
Question 151Single Answer
Density of the following polymers is used for making bullet proof windows ?
A
Polycarbonates
B
Polyerethanes
C
Polystyrene
D
Polyamides
Question 152Single Answer
Match the List – I with List – II
List - I List - II
(Substances) (Applications)
A. Aspartame 1. Syunthetic rubber
B. Freon 2. Anti – histamine
C. Neoprene 3. Artificial Sweetener
D. Benadryl 4. Refrigerant
Select correct answer using the codes given below :
A
A B C D
1 3 4 2
B
2 4 1 3
C
3 4 1 2
D
3 1 2 4
Question 153Single Answer
Match the List – I with List – II
List - I List - II
(Noble gas) (Use)
A. Argon 1. In lights for advertising display
B. Neon 2. Airport landing lights and in light houses
C. Krypton 3. Light in photographer's flash gun
D. Xenon 4. In tungsten filament to last longer
Select correct answer using the codes given below :
A
A B C D
3 1 2 4
B
3 2 1 4
C
4 2 1 3
D
4 1 2 3
Question 154Single Answer
Which one is a sublime substance ?
A
Table salt
B
Sugar
C
Iodine
D
Potassium Iodide
Question 155Single Answer
The process of change of liquied state into gaseous state at constant temperature is known as.
A
boiling
B
melting
C
fusion
D
evaporation
Question 156Single Answer
Which one is a surface phenomenon ?
A
Evaporation
B
Boiling
C
Both (a) and (b)
D
None of these
Question 157Single Answer
Jayamkondam in Tamil Nadu is famous for which among the following minerals ?
A
Bauxite
B
Lignite
C
Calcite
D
Magnesite
Question 158Single Answer
Which of the following processes is known as fusion ?
A
change of liquid to solid
B
Change of solid to liquid
C
Change of liquid to vapour
D
Change of gaseous state to solid state
Question 159Single Answer
The one, in which interparticle forces are strongest, is.
A
sodium chloride
B
hydrogen
C
ether
D
carbon dioxide
Question 160Single Answer
Which of the following is compound ?
A
Stainless steel
B
Brass
C
Iron sulphide
D
Diamond
Question 161Single Answer
Which one of the following is non-crystalline or amorphous ?
A
Diamond
B
Graphite
C
Glass
D
Common Salt
Question 162Single Answer
The size of colloidal particles usually lies in the range.
A
10–5 – 10–7 cm
B
10–7 – 10–9 cm
C
10–3 – 10–5 cm
D
10–5 – 10–6 cm
Question 163Single Answer
Oil and water can form a stable dispersion with the help of a third substance commonly called.
A
emulsifier
B
dispersant
C
protective colloid
D
None of these
Question 164Single Answer
Why is helium preferred over hydrogen for use in airships.
A
Helium has a low density
B
Helium has a high density
C
Helium is chemically less reactive
D
Helium is chemically more reactive
Question 165Single Answer
Which one of the following mixture is homogeneous ?
A
Starch and sugar
B
Methanol and water
C
Graphite and charcoal
D
Calcium carbonate and calcium bicarbonate
Question 166Single Answer
A mixture of sulphur and carbon disulphide is.
A
heterogeneous and shows Tyndall effect
B
homogeneous and shows Tyndall effect
C
heterogeneous and does not show Tyndall effect
D
homogeneous and does not show Tyndall effect
Question 167Single Answer
A student, carefully observed the colloidal of starch in water, human blood and cow milk. On the basis of observations, he made certain conclusions given below. Choose the wrong conclusion about colloidal solution.
A
Translucent
B
Components can be separated by ordinary filteration
C
Heterogenous and stable
D
show tyndal effect
Question 168Single Answer
Choose the incorrect statement about true solution.
A
Its components can not be separated by filteration
B
It is opaque and unstable
C
Its particles can not be seen through naked eye
D
It does not show tyndal effect
Question 169Single Answer
Barium sulphate (BaSO4) dispersed in water used diagnostic X–rays is a.
A
Colloid
B
Solution
C
Suspension
D
Foam
Question 170Single Answer
Non–reacting gases have a tendency to mix with each other. This phenomenon is known as.
A
chemical reaction
B
diffusion
C
effusion
D
explosion
Question 171Single Answer
Alkali halids do not show Frenkel defect because
A
cations and anions have almost equal size
B
there is a large difference in size of cations and anions
C
cations and anions have low coordination number
D
anions cannot be accommodated in voids
Question 172Single Answer
In NaCl structure
A
all octahedral and tetrahedral sites are occupied
B
only octahedral sites are occupied
C
only tetrahedral sites are occupied
D
neither octahedral nor tetrahedral sites are occupied
Question 173Single Answer
A mixture of ZnCl2 and PbCl2 can be separated by.
A
distillation
B
crystallization
C
sublimation
D
adding acetic acid
Question 174Single Answer
Magnetism is most beneficial for separating.
A
gases and non–metallic liquids
B
magnetic solids and solids such as sulphur
C
non–metallic solids and solids such as sulphur
D
non–magnetic solids from non–magnetic liquids
Question 175Single Answer
Water is boiling is open fry pan represents which type of change ?
A
Physical and irreversible
B
Chemical and irreversible
C
Physical and reversible
D
Chemical and reversible
Question 176Single Answer
Chemical change is always accompanied by
(1) production of sound
(2) heat and light
(3) change in mass
(4) change in colour
A
1, 2 & 3
B
2 & 4
C
1 only
D
1, 2 & 4
Question 177Single Answer
Who among the following is called 'The father of modern chemistry" ?
A
Michael Faraday
B
Lavoisier
C
Proust
D
Linus Pauling
Question 178Single Answer
Which one among the following is not a mixture ?
A
Graphite
B
Glass
C
Brass
D
Steel
Question 179Single Answer
The latest discovered state of matter is.
A
Solid
B
Bose–Einstein condensation
C
Plasma
D
liquid
Question 180Single Answer
Which one of the following is not a mixture ?
A
Toothpaste
B
Toilet soap
C
Baking soda
D
Vinegar
Question 181Single Answer
Which one of the following is a heterogenous mixure ?
A
Hydrochloric acid
B
Vinegar
C
Milk
D
Soda water
Question 182Single Answer
Which one of the following is not a characteristic of a compound ?
A
Composition is variable
B
All particles of compounder are of only one type
C
Particle of compound have two or more elements
D
Its constituents cannot be separated by simple physical methods
Question 183Single Answer
The gas is commonly used in anaesthesia.
A
methane
B
nitrous oxide
C
nitrogen
D
hydrogen peroxide
Question 184Single Answer
The inert gas abundantly found in atmosphere is.
A
Xe
B
Kr
C
He
D
Ar
Question 185Single Answer
Which gas is used in filling electric bulbs ?
A
Neon
B
Argon
C
Radon
D
Krypton
Question 186Single Answer
Kerosoene is a mixture of.
A
aromatic hydrocarbons
B
aliphatic hydrocarbons
C
saturated hydrocarbons
D
alicyclic hydrocarbons
Question 187Single Answer
Candle contains a mixture of.
A
Bees wax and paraffin wax
B
Bees wax and stearic acid
C
Paraffin wax and stearic acid
D
Higher fatty acid
Question 188Single Answer
Which one of the following noble gases is not found in the atmosphere ?
A
Argon
B
krypton
C
Radon
D
Xenon
Question 189Single Answer
Which gas is responsible for the swelling of bread ?
A
oxygen
B
Carbon monoxide
C
Carbon dioxide
D
Ammonia
Question 190Single Answer
Which of the following is used as a preservative to protect processed food ?
A
Sodium sulphate
B
Saccharin
C
BHT
D
Sodium metabisulphite
Question 191Single Answer
Carborundum is a compound of.
A
Ca
B
Ge
C
Si
D
S
Question 192Single Answer
Which of the following could act as a propellant for rockets ?
A
Liquid oxygen + Liquid argon
B
Liquid hydrogen + Liquid oxygen
C
Liquid nitrogen + Liquid oxygen
D
Liquid hydrogen + Liquid nitrogen
Question 193Single Answer
Helium is preferred to hydrogen in air ballons because it.
A
is cheaper
B
is less dense
C
has greater lifting power
D
does not form an explosive mixture with air
Question 194Single Answer
The compound that has the least value for octane number is-
A
n–heptane
B
2–methyl heptane
C
Iso–octane
D
2, 2 – dimethyl hexane
Question 195Single Answer
Select the one that is not a matter.
A
feeling of hot
B
smoke
C
humidity
D
water
Question 196Single Answer
Which is incorrect statement ?
A
Matter is continuous in nature
B
Of the three state of matter, the one that is most compact is solid state
C
In solid state interparticles space (i.e. empty space) is minimum
D
The density of solid is generally more than that of a liquid
Question 197Single Answer
Select the one that when used would be considered as best condition for liquification of a gas.
A
Increasing the temperature
B
Decreasing the pressure
C
Increasing the pressure and decreasing the temperature
D
Decreasing the pressure and increasing the temperature
Question 198Single Answer
Select the correct order of evaporation for water, alcohol, petrol and kerosene oil:
A
water > alcohol > kerosene oil > petrol
B
alcohol > petrol > water > kerosene oil
C
petrol > alcohol > water . kerosene oil
D
petrol > alcohol > kerosene oil > water
Question 199Single Answer
The evaporation of a liquid can best be carried out in a.
A
flask
B
china dish
C
test–tube
D
beaker
Question 200Single Answer
The melting point temperature of the solid state of a substance is 40° C. The freezing point temperature of the liquid state of the same substance will be.
are the same as that of
(V - b) = constant, the unit of a is