प्रश्न में दी गई इटैलिक अशुद्ध वर्तनी का शुद्ध रूप चयन कीजिए।
तुम्हारा यह कथन मात्र अतिश्योक्ती है।
A
अंतोश्योक्ती
B
अतीश्योक्टि
C
अतिश्योक्ति
D
अतिशयोक्ति
Question 6Single Answer
Passage :
प्रश्न में एक शब्द दिया गया है जिसका सन्धि-विच्छेद चार प्रकार से किया गया है। इनमें सें केवल एक ही विकल्प सही है। सही सन्धि-विच्छेद का चयन कीजिए -
बहिष्कार
A
बहि: + कार
B
बहिष + कर
C
बहि + अकार
D
बहि़ + सकार
Question 7Single Answer
Passage :
प्रश्न में एक शब्द दिया गया है जिसका सन्धि-विच्छेद चार प्रकार से किया गया है। इनमें सें केवल एक ही विकल्प सही है । सही सन्धि-विच्छेद का चयन कीजिए -
नाविक
A
नौ + इक
B
ना + इक
C
नो + इक
D
ना + विक
Question 8Single Answer
Passage :
प्रश्न में एक शब्द दिया गया है जिसका सन्धि-विच्छेद चार प्रकार से किया गया है। इनमें सें केवल एक ही विकल्प सही है । सही सन्धि-विच्छेद का चयन कीजिए -
दिगम्बर
A
दि + गम्बर
B
दिगम् + बर
C
दिक् + अम्बर
D
दिग + अम्बर
General English
Question 9Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
He was in the temper
B
and refused
C
discuss the matter again
D
No error
Question 10Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
A flower makes no garland
B
so we must do a thing together
C
in a unit for a good result
D
No error
Question 11Single Answer
Read sentence to find out whether there is any grammatical error in it. The sentences are In three separate parts and each one is labelled (a), (b), (c) and (d). In that case, letter (d) will signify a ‘No error’ response.
A
My friend is a software engineer
B
and his wife is doctor
C
so they don’t have enough time for each other
D
No error
Question 12Single Answer
Passage :
In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
To sleep with the fishes
A
Always be in a dream world
B
To make absurd excuses
C
To sleep peacefully
D
To be dead
Question 13Single Answer
Passage :
In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
To free someone or something form a constraint or difficulty.
A
To exterminate
B
To expurgate
C
To intricate
D
To extricate
General Knowledge & Reasoning, Numerical Ability
Question 14Single Answer
Yojna a weekly journal
A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission
Question 15Single Answer
Which of the following is an important Paleolithic site of Madhya Pradesh?
A
Narmada valley
B
Hathnora
C
Jogdaha
D
All of the above
Question 16Single Answer
How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?
A
Two
B
Three
C
Five
D
Four
E
None of these
Question 17Single Answer
The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?
A
51:52
B
52:53
C
51:53
D
52:55
Question 18Single Answer
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 19Single Answer
Which of the following contain enzymes for cellular respiration ?
A
Dictyosomes
B
Endoplasmic reticulum
C
lysosomes
D
Mitochondria
Question 20Single Answer
On what date did India celebrate the 9th anniversary of the Goods and Services Tax (GST) implementation?
A
July 1, 2026
B
June 30, 2026
C
July 2, 2026
D
June 29, 2026
Pedagogy
Question 21Single Answer
Of Froebel's idealism it can be said that :
A
education is not a process of unflodment
B
learning unites knowledge, feelings and doing
C
education cannot be a process of self realination
D
the notion of self activity is limited to manual activity is limited to manual activity
Question 22Single Answer
Critically examine the following Assertion (A) and Reason (R) and give your answer from the codes given below : Assertion (A) : There is almost a consensus that drop out rate of the government primary schools is much higher in comparison to that of public schools. Reason (R) : It is so because the government primary schools do not offer enough cocurricular activities.
A
Codes :
Both (A) and (R) are true.
B
(A) is true but (R) is false.
C
(A) is false but (R) is true.
D
Both (A) and (R) are false.
Question 23Single Answer
A common feature of Hinduism, Buddism and Jainism is belief about :
A
the unreality of the world
B
the existence of God
C
the soul
D
karma and rebirth
Question 24Single Answer
'Epistemology' means :
A
stem cell research
B
study of the nature of knowledge
C
study of the nature of values
D
study of the nature of the world
Question 25Single Answer
Epistemology is the branch of philosophy which deals with the theories of :
A
Realitty
B
Existence
C
Knowledge
D
Values
Question 26Single Answer
Given below are two statements, one labelled as Assertion (A) and the other labeled as Reason (R). Assertion (A) : Philosophy helps in determining aims of education Reason (R) : Education depends mostly on Philosophy.
In the context of the two statements, which one of the following is correct ?
A
Codes :
Both (A) and (R) are true.
B
Both (A) and (R) are false.
C
(A) is true but (R) is false.
D
(A) is false but (R) is true.
Question 27Single Answer
Which of the following schools of philosophy integrates students' capacities, interests, habits with social participation ?
A
Pragmatism
B
Realism
C
Naturalism
D
Idealism
Question 28Single Answer
Which of the following is the common belief held by Tagore, Gandhi and Aurobindo ?
A
Self-reliance
B
International harmony
C
Socialisation of children
D
National character
Question 29Single Answer
Fine arts and aesthetics are given top priority in the curriculum by :
A
Naturalism
B
Existentialism
C
Idealism
D
Pragmatism
Question 30Single Answer
Identify the functions of educational philosophy :
(i) To integrate divinity into education of man.
(ii) To provide theoretical bases for teacher's behaviour.
(iii) To generate the principles of curriculum framework.
(iv) To answer all ultimate 'why' questions regarding educational practices.
A
ii and iii
B
i and iv
C
i, ii, and iv
D
ii, iii and iv
Chemistry
Question 31Single Answer
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
A
between 7 and 8
B
between 5 and 6
C
between 6 and 7
D
between 10 and 11
Question 32Single Answer
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
A
1.93 A
B
9.65 A
C
19.3 A
D
0.965 A
Question 33Single Answer
The one which decreases with dilution is
A
molar conductance
B
conductance
C
specific conductance
D
equivalent conductance
Question 34Single Answer
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25oC, the vapour pressure of pure ‘B’ at 25oC is
A
28 mm
B
56 mm
C
70 mm
D
140 mm
Question 35Single Answer
A 6% solution of urea is isotonic with
A
1 M solution of glucose
B
0.05 M solution of glucose
C
6% solution of glucose
D
25% solution of glucose
Question 36Single Answer
In countries nearer to polar region, the roads are sprinkled with CaCl2. This is
A
to minimise the wear and tear of the roads
B
to minimise the snow fall
C
to minimise pollution
D
to minimise the accumulation of dust on the road
Question 37Single Answer
A compound of ‘A’ and ‘B’ crystallises in a cubic lattice in which ‘A’ atoms occupy the lattice points at the corners of the cube. The ‘B’ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is
A
AB2
B
A2B
C
AB
D
AB3
Question 38Single Answer
In electrophilic aromatic substitution reaction, the nitro group is meta directing because it
A
decreases electron density at ortho and para positions
B
decreases electron density at meta position
C
increases electron density at meta position
D
increases electron density at ortho and para position
Question 39Single Answer
The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with
A
PCI5
B
PCI3
C
SOCl2 in presence of pyridine
D
dry HCl in the presence of anhydrous ZnCl2
Question 40Single Answer
The carbon bond length in benzene is
A
in between C2H6 and C2H4
B
same as in C2H4
C
in between C2H6 and C2H2
D
in between C2H4 and C2H2
Question 41Single Answer
The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is
A
methanal
B
propanal
C
propanone
D
ethanal
Question 42Single Answer
An organic compound x is oxidised by using acidified K2Cr2O7. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structured of X is
A
CH3CH2OH
B
CH3 – C – CH3
C
(CH3)2CHOH
D
CH3CHO
Question 43Single Answer
Arrange the following in the increasing of their. Basic strengths CH3NH2, (CH3)2NH, (CH3)2N, NH3
A
NH3, < (CH3)3N < (CH3)2NH < CH3NH2
B
NH3 < (CH3)3N < CH3NH2 < (CH3)2NH
C
(CH3)3N < NH3 < CH3NH2 < (CH3)2NH
D
CH3NH2 < (CH3)2NH < (CH3)3N , NH3
Question 44Single Answer
The one which has least iodine value is
A
sunflower oil
B
ginger oil
C
ghee
D
groundnut oil
Question 45Single Answer
A diabetic person carries a packet of glucose with him always, because
A
glucose reduces the blood sugar level slowly
B
glucose increases the blood sugar level slowly
C
glucose reduces the blood sugar level
D
glucose increases the blood sugar level almost instantaneously
Question 46Single Answer
There are 20 naturally occurring among acids. The maximum number of tripeptides than can be obtained is
A
8000
B
6470
C
7465
D
5360
Question 47Single Answer
At what temperature ill the RMS velocity of SO2 be the same as that of O2 at 303 K ?
A
403 K
B
303 K
C
606 K
D
273 K
Question 48Single Answer
Phenol is treated with bromine water and shaken well. The white precipitate formed during the process is
A
m–bromophenol
B
2, 4, 6 tribromophenol
C
2-4 dibromophenol
D
A mixture of o-and p-bromophenols
Question 49Single Answer
In thermite process the metal used as reducing agent is:
A
Nickel
B
Zinc
C
Sodium
D
Aluminium
Question 50Single Answer
Which of the following compounds on boiling with alkaline KMnO4 and subsequent acidification will not give benzoic acid?
A
Benzyl alcohol
B
Acetophenone
C
Anisole
D
Toluene
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Chemistry
Question 51Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 52Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiO4
D
Ca3(PO4)2
Question 53Single 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 54Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 55Single 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 56Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 57Single 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 58Single 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 59Single 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 60Single 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 61Single Answer
Which one of the following is another name of RDX
A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite
Question 62Single Answer
Which one of the following is used as an explosive ?
A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine
Question 63Single 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 64Single 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 65Single Answer
Which one of the following is not used as fertilizer ?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphate
Question 66Single 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 67Single 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 68Single 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 69Single Answer
A complete fertilizer provides
A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P
Question 70Single 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 71Single 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 72Single Answer
Petrochemicals are obtained from.
A
coal
B
petroleum
C
coal tar
D
All of these
Question 73Single Answer
The use of chemicals for treatment of diseases is called as.
A
isothermotherapy
B
angiotherapy
C
physiotherapy
D
chemotherapy
Question 74Single Answer
Which of the following is a hypnotic drug ?
A
luminal
B
salol
C
catechol
D
chemisol
Question 75Single 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 76Single 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 77Single Answer
Glass is a.
A
liquid
B
colloid
C
non–crystalline amorphous solid
D
crystalline solid
Question 78Single Answer
Which one of the following acids is used for etching glass ?
A
H2SO4
B
HNO3
C
HF
D
HCI
Question 79Single 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 80Single 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 81Single 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 82Single 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 83Single 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 84Single 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 85Single 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 86Single Answer
Terfenadine is commonly used as a/an.
A
transquilizer
B
antihistamine
C
antimicrobial
D
antibiotic
Question 87Single Answer
Which one of the following is not a tranqualizer ?
A
Equanil
B
Veronal
C
Salvarsan
D
Serotonin
Question 88Single Answer
Barbituric acid and its derivatives are well known.
A
antipyretics
B
analgesics
C
antiseptics
D
tranquilizers
Question 89Single Answer
Which one among is not an analgesic ?
A
Ibuprofen
B
Naproxen
C
Aspirin
D
Valium
Question 90Single 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 91Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
A
o–chlorophenozylenol + terpeneol
B
o–cresol + terpeneol
C
phenol + terpeneol
D
chloroxylenol + terpeneol
Question 92Single Answer
Which of the following is not an antiseptic drug ?
A
Iodoform
B
Dettol
C
Gammexene
D
Genatian violet
Question 93Single Answer
Which one of the following substances is made from natural raw materials ?
A
Rayon
B
Nylon
C
Polyster
D
Polystyrene
Question 94Single 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 95Single 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 96Single Answer
Contact lenses are made from.
A
polyvinyl chloride
B
polystyrene
C
lucite
D
teflon
Question 97Single 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 98Single Answer
vermicompost is an/a.
A
inorganic fertilizer
B
toxic substance
C
organic bio fertilizer
D
synthetic fertilizer
Question 99Single 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 100Single 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 101Single Answer
Density of the following polymers is used for making bullet proof windows ?
A
Polycarbonates
B
Polyerethanes
C
Polystyrene
D
Polyamides
Question 102Single 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 103Single 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 104Single Answer
Which one is a sublime substance ?
A
Table salt
B
Sugar
C
Iodine
D
Potassium Iodide
Question 105Single 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 106Single Answer
Which one is a surface phenomenon ?
A
Evaporation
B
Boiling
C
Both (a) and (b)
D
None of these
Question 107Single Answer
Jayamkondam in Tamil Nadu is famous for which among the following minerals ?
A
Bauxite
B
Lignite
C
Calcite
D
Magnesite
Question 108Single 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 109Single Answer
The one, in which interparticle forces are strongest, is.
A
sodium chloride
B
hydrogen
C
ether
D
carbon dioxide
Question 110Single Answer
Which of the following is compound ?
A
Stainless steel
B
Brass
C
Iron sulphide
D
Diamond
Question 111Single Answer
Which one of the following is non-crystalline or amorphous ?
A
Diamond
B
Graphite
C
Glass
D
Common Salt
Question 112Single 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 113Single 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 114Single 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 115Single 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 116Single 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 117Single 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 118Single 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 119Single Answer
Barium sulphate (BaSO4) dispersed in water used diagnostic X–rays is a.
A
Colloid
B
Solution
C
Suspension
D
Foam
Question 120Single 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 121Single 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 122Single 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 123Single Answer
A mixture of ZnCl2 and PbCl2 can be separated by.
A
distillation
B
crystallization
C
sublimation
D
adding acetic acid
Question 124Single 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 125Single 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 126Single 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 127Single Answer
Who among the following is called 'The father of modern chemistry" ?
A
Michael Faraday
B
Lavoisier
C
Proust
D
Linus Pauling
Question 128Single Answer
Which one among the following is not a mixture ?
A
Graphite
B
Glass
C
Brass
D
Steel
Question 129Single Answer
The latest discovered state of matter is.
A
Solid
B
Bose–Einstein condensation
C
Plasma
D
liquid
Question 130Single Answer
Which one of the following is not a mixture ?
A
Toothpaste
B
Toilet soap
C
Baking soda
D
Vinegar
Question 131Single Answer
Which one of the following is a heterogenous mixure ?
A
Hydrochloric acid
B
Vinegar
C
Milk
D
Soda water
Question 132Single 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 133Single Answer
The gas is commonly used in anaesthesia.
A
methane
B
nitrous oxide
C
nitrogen
D
hydrogen peroxide
Question 134Single Answer
The inert gas abundantly found in atmosphere is.
A
Xe
B
Kr
C
He
D
Ar
Question 135Single Answer
Which gas is used in filling electric bulbs ?
A
Neon
B
Argon
C
Radon
D
Krypton
Question 136Single Answer
Kerosoene is a mixture of.
A
aromatic hydrocarbons
B
aliphatic hydrocarbons
C
saturated hydrocarbons
D
alicyclic hydrocarbons
Question 137Single 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 138Single Answer
Which one of the following noble gases is not found in the atmosphere ?
A
Argon
B
krypton
C
Radon
D
Xenon
Question 139Single Answer
Which gas is responsible for the swelling of bread ?
A
oxygen
B
Carbon monoxide
C
Carbon dioxide
D
Ammonia
Question 140Single 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 141Single Answer
Carborundum is a compound of.
A
Ca
B
Ge
C
Si
D
S
Question 142Single 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 143Single 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 144Single 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 145Single Answer
Select the one that is not a matter.
A
feeling of hot
B
smoke
C
humidity
D
water
Question 146Single 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 147Single 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 148Single 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 149Single Answer
The evaporation of a liquid can best be carried out in a.
A
flask
B
china dish
C
test–tube
D
beaker
Question 150Single 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.