The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is

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

Arrange the following in the increasing of their. Basic strengths CH₃NH₂, (CH₃)₂NH, (CH₃)₂N, NH₃

The one which has least iodine value is

A diabetic person carries a packet of glucose with him always, because

There are 20 naturally occurring among acids. The maximum number of tripeptides than can be obtained is

At what temperature ill the RMS velocity of SO₂ be the same as that of O₂ at 303 K ?

Phenol is treated with bromine water and shaken well. The white precipitate formed during the process is

In thermite process the metal used as reducing agent is:

Which of the following compounds on boiling with alkaline KMnO₄ and subsequent acidification will not give benzoic acid?

The base present in DNA, but not in RNA is:

The total number of lattice arrangements in different crystal system is:

Alcoholic potash is used to bring about :

Which of the following is the correct statement?

The unit of quantity of electricity is:

Which of the following organic compounds answers both iodoform test and fehling’s test ?

10 dm³ of N₂ gas and 10 dm³ of gas X at the same temperature and pressure contain the same number of molecules.

When the electrons of hydrogen atoms return to L shell from shells of higher energy, we get a series of lines in the spectrum. This series is called

The alcohol obtained by the hydrolysis of oils and fats is:

Which of the following alloys is used for making magnets for hearing aids?

One dm³ of 2M ethanoic acid is mixed with one dm³ of 3M ethanol to form an easter
CH₃COOH + C₂H₅OH → CH₃COOC₂H₅ +H₂O
The decrease in the initial rate if each solution is diluted with an equal volume of water would be

Which one of the following can be classified as a Bronstead base?

Gold sol is an electronegative sol. The amount of electrolyte required to coagulate a certain amount of gold sol is minimum in the case of :

Aluminium displaces hydrogen from acids, but copper does not. A Galvanic cell prepared by combining Cu/Cu²⁺ and Al/Al³⁺ has an emf of 2.0 V at 298 K. If the potential of copper electrode is +0.34 V, that of aluminium electrode is:

1.5 moles of O₂ combine with Mg to form the oxide MgO. The mass of Mg that has combined is (Mg = 24):

How much of NaOH is required to neutralize 1500 cm³ of 0.1 N HCI?(Na = 23):

The boiling point of water is exceptionally high because:

P₄O₁₀ is not used with to dry NH₃ gas because:

A radioactive isotope has a half-life of 10 years. What percentage of the original amount of it remain after 20 years:

75% of a first order reaction is completed in 30 minutes. What is the time required for 93.75% of the reaction (in minutes)?

The respiratory quotient during cellular respiration would depend on

Which of the following is not a green - house gas ?

Both husband and wife have normal vision though their fathers were colorblind and mothers did not have any gene for colorblindness. The probability of their daughters becoming colorblind is

An animal, which has both exoskeleton and endoskeleton structures is a

Identify the group, which includes animals all of which give birth to young ones directly?

Compare the statement A and B.
Statement A Blood sugar level falls rapidly after hepatectomy.
Statement B The glycogen of the liver is the principal source of blood sugar.
Select the correct description.

What is/are true about heart wood?
(A) It does not help in water conduction.
(B) It is also called laburnum.
(C) It is dark in colour but very soft.
(D) It has tracheary elements which are filled with tannin, resin, etc.

Compare the statements A and B.
Statement A Auxins promote apical dominance by suppressing the activity of lateral buds.
Statement B In moriculature, periodic pruning of shoot tips is done to make mulberry plants bushy.
Select the correct description.

Bryophytes resemble algae is the following aspects

Stoma opens, when

Which of the following is properly matched ?

A man is admitted to a hospital. He is suffering from an abnormally low body temperature, loss of appetite and extreme thirst. His brain scan would probably show a tumour in

The agents, which are known to cause CJD are

In crop improvement programmers, virus-free clones can be obtained through

A person is suffering from frequent episodes of nasal discharge, nasal congestion, reddening of eyes and watery eyes. These are the symptoms of

Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence.
A: Secretion of FSH
B: Growth of corpus luteum
C: Growth of the follicle and oogenesis
D: Ovulation
E: Sudden increase in the levels of LH
 

Which of the following options shows bisexual animals only ?

Vaccination against small pox was developed by:

The value of human diastolic blood pressure is :

Balance theory of sex determination holds good for:

the plants respond to photo – periods due to the presence of :

Identify the edible fresh-water telesots:

Plasmids occur in:

Match the names of antibiotics listed under column 1 with their source given under column 2; choose the correct combination of alphabets of the two columns:

	Column 1		Column 2
A B C D	Neomycin Terramycin Viridian penicillin	p q r s	Streptomyces fradiae Penicillium notatum Streptomyces rimosus Gliocladium virens

The bond formed between the first phosphate group and adenosine in ATP is:

The protists have:

Antrum is the cavity of:

Which of the following statement is wrong?

The pioneers in the field of organic evolution are:

This one is the characteristic of epithelial tissues:

Great Indian Bustard sanctuary is located in:

The result of ozone hole is:

This is not cells of areolar tissue:

The pH of stomach range between:

Match the name of the experiments listed under column 1 with the aim of the experiment given under column 2; choose the answer which give the correct combination of the alphabets:

	column 1		column 2
A.	Gridling experiment	p	Ascent of sap
B.	Cobalt chloride paper method	q	Transpiration
C.	Crescograph	r	Unequel transpiration on leaf surfaces
D.	Bell jar experiment	s	translocation

Number of endangered species of angiosperms in India is:

Transduction in bacteria is mediated by:

Match the common name of diseases listed under column 1 unit their medical terms listed under column 2; choose the answer which gives the correct combination of the alphabets of the two columns:

	Column 1		Column 2
A.	Blood clotting in small capillaries	p	Rhinitis
B.	Value defects	q	Stenosis
C.	Hay fever	r	Parkinson's disease
D.	Paralysis	s	Coronany thrombosis

The cell wall of bacteria is composed of:

The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as:

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

If A B and A B, then

The number of non-empty subsets of the set{1, 2, 3, 4} is

The number of elements of the power set of a set containing m elements is

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

Which of the following is/are empty set? 
A = {x : x2 + x + 1 = 0 and x Î Z}   B = {x : x is a prime number and 19 < x < 23}

The set {x : x⁴ = 1 and x R} is .....X.... set. Here, X refers to

The universal set for the sets   
A = {x : x² – 5x + 6 = 0} and   
B = {x : x² – 3x + 2 = 0} having least number of elements is

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0}, 

If A = (–3, 5) and  B = [–7, 9], then

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

Combine terms: 12a + 26b  - 4b – 16a .

The average of first 50 natural numbers is ………… .

60 Times of 8 Equals to

Consider the sets

If X = {4n – 3n – 1: n Î N} and Y = {9(n – 1): n Î N}; where N is the set of natural numbers, then X È Y is equal to

Consider the following statements :
1. The set of all irrational numbers between √2 and √5 is an infinite set .
2. The set of all odd integers less than 100 is a finite set .
Which of the statements given above is/are correct ?

What is the Next Prime Number after 7 ?

If A and B are two given sets, then A (A B)^C is equal to

121 Divided by 11 is

Let X be the universal set for sets A and B, if n(A) = 200, n(B) = 300 and n = 100, then n is equal to 300 provided n(X) is equal to

Let A = {x : x is a prime factor of 240} B = {x : x is the sum of any two prime factors of 240}, then

If A = {x : x is a multiple of 4 and x N} and B = {x : x is a multiple of 6 and x N}, then A B consists of all multiples of

In a group of 400 people, 250 can speak Hindi and 200 can speak English. Then, people who can speak both Hindi and English are

20 teachers of a school either teach Mathematics or Physics. 12 of them teach Mathematics while 4 teach both the subjects. The number of teacher teaching Physics only, is

In a class of 100 students, 70 have taken Science, 60 have taken Mathematics, 40 have taken both Science and Mathematics. The number of students who have not taken Science or Mathematics or both Science and Mathematics, is equal to

A market research group conducted a survey of 1000 consumers and reported that 720 consumers like product A and 450 consumers like the product B, then least number that must have like both products, is

If there are three athletic teams in a school, 21 are in the basketball team, 26 in hockey team and 29 in the football team. 14 play hockey and basketball, 15 play hockey and football, 12 play football and basketball and 8 play all the games. The total number of members is

In ruby laser, the stimulated emission is due to transition from

A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is

convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is

Two sources are said to be coherent if they produce waves

Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -

In a common emitter amplifier the input signal is applied across

Adding detergents to water helps in removing dirty greasy stains. This is because
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules

Choose the correct statement (a) for a cricket ball that is spinning clockwise through air
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.

Ferromagnetic materials used in a transformer must have

According to Newton’s corpuscular theory, the speed of light is

For the constructive interference the path difference between the two interfering waves must be equal to

The accurate measurement of emf can be obtained using

A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which the following is true about his kinetic energy K and angular momentum L?

Which of the following is not a thermodynamic coordinate?

An antenna uses electromagnetic waves of frequency 5 MHz . For proper working, the size of the antenna should be

The amount of energy released when one microgram of matter is annihilated is

The number of significant figures in the numbers 4.8000 x 10⁴ 48000.50 are respectively

β-decay means emission of electron from

An electric heater rated 220 V and 550 W is connected to AC mains. The current drawn by it is

A string is wound round the rim of a mounted flywheel of mass 20 kg and radius 20 cm. A steady pull of 25 N is applied on the cord. Neglecting friction and mass of the string, the angular acceleration of the wheel is

A billiards player hits a stationary ball by an identical ball to pocker the target ball in a corner pocket that is at an angle of 35^o with respect to the direction of motion of the first ball. Assuming the collision as elastic and that frictional and rotational motions are not important, the angle made by the target ball with respect to the imcoming ball is

A body of mass 0.05 kg is observed to fall with an acceleration of 9.5 ms^-2. The opposing force of air on the body is (g = 9.8 ms^-2)

The colloidal solution in which both the dispersed phase and dispersion medium are liquids are called

In fog, photographs of the objects taken with infrared radiations are more clear than those obtained during visible light because

Three concurrent co-planar forces 1 N, 2 N and 3 N acting along different directions on a body

Sound waves transfer

G P Thomson experimentally confirmed the existence of matter waves by the phenomena

The resistance of a wire at 300 K is found to be 0.3 Ω. If the temperature coefficient of resistance of wire is 1.5 x 10^-3 K^-1, the temperature at which the resistance becomes 0.6 Ω is

Two luminous points sources separated by a certain distance are at 10 km from an observer. If the aperture of his eye is 2.5 x 10^-3 m and the wavelength of light used is 500 nm the distance of separation between the point sources just seen to be resolved is

A door 1.6 m wide requires a force of N to be applied at the free end to open or close it. The force that is required at a point 0.4 m distance from the hinges for opening or closing the door is

0.1 m³ of water at 80^o C. The final temperature of the mixture is

The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrum

A resistor and a capacitor are connected inseries  with an AC source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, then applied voltage is

The amount of heat energy radiated by a metal at temperature T is E. When the temperature is increased to 3T, energy radiated is

A man, of mass 60 kg, is riding in a lift. The weights of the man, when the lift is accelerating upwards and down wards at 2m/s² are respectively (Taking g=2m/s²)

A galvanometer of resistance 240 Ω allows only 4% of the main current after connecting a shunt resistance. The value of the shunt resistance is

The phenomena in which proton flips is

According to the quark model, it is possible to build all the hadrons using

The surface temperature of the stars is determined using

A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side of the principal axis, the intensity of light