Match List - I with List - II. List - I (Molecule) List - II (Bond order) (a) $$N{

Ceric ammonium nitrate and CHCl3/alc. KOH are used for the identification of functional groups present in __________ and

In $$\mathop C\limits^1 {H_2} = \mathop C\limits^2 = \mathop C\limits^3 H - \mathop C\limits^4 {H_3}$$ molecule, the hy

A. Phenyl methanamineB. N,N-DimethylanilineC. N-Methyl anilineD. BenzenamineChoose the correct order of basic nature of

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.Assertion A : In T

Which of the following forms of hydrogen emits low energy $$\beta$$- particles?

Which pair of oxides is acidic in nature?

Identify A in the given reaction.

Match List - I with List - II.Choose the correct answer from the options given below :

Identify A in the following chemical reaction.

2, 4-DNP test can be used to identify :

Considering the above reaction, the major product among the following is :

Identify A in the given chemical reaction.

The correct order of electron gain enthalpy is :

Match List - I with List - II. List - I List - II (a) Sucrose (i) $$\beta

Seliwanoff test and Xanthoproteic test are used for the identification of ___________ and ________ respectively.

When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be $$-$$0.93$$^\

If the activation energy of a reaction is 80.9 kJ mol$$-$$1, the fraction of molecules at 700 K, having enough energy to

In mildly alkaline medium, thiosulphate ion is oxidized by $$MnO_4^ - $$ to "A". The oxidation state of sulphur in "A" i

The average S-F bond energy in kJ mol$$-$$1 of SF6 is _____________. (Rounded off to the nearest integer)[Given : The va

Emf of the following cell at 298K in V is x $$\times$$ 10$$-$$2.Zn|Zn2+(0.1 M)||Ag+ (0.01 M)|AgThe value of x is _______

The pH of ammonium phosphate solution, if pka of phosphoric acid and pkb of ammonium hydroxide are 5.23 and 4.75 respect

The number of stereoisomers possible for [Co(ox)2(Br)(NH3)]2$$-$$ is ___________. [ox = oxalate]

A ball weighing 10 g is moving with a velocity of 90 ms$$-$$1. If the uncertainty in its velocity is 5%, then the uncert

The NaNO3 weighed out to make 50 mL of an aqueous solution containing 70.0 mg Na+ per mL is _________ g. (Rounded off to

Let f(x) be a differentiable function at x = a with f'(a) = 2 and f(a) = 4. Then $$\mathop {\lim }\limits_{x \to a} {{xf

Let A(1, 4) and B(1, $$-$$5) be two points. Let P be a point on the circle (x $$-$$ 1)2 + (y $$-$$ 1)2 = 1 such that (PA

Consider the following system of equations :x + 2y $$-$$ 3z = a2x + 6y $$-$$ 11z = bx $$-$$ 2y + 7z = c,where a, b and c

A natural number has prime factorization given by n = 2x3y5z, where y and z are such that y + z = 5 and y$$-$$1 + z$$-$$

If 0 < a, b < 1, and tan$$-$$1a + tan$$-$$1b = $${\pi \over 4}$$, then the value of $$(a + b) - \left( {{{{a^2} +

Let $$f(x) = \int\limits_0^x {{e^t}f(t)dt + {e^x}} $$ be a differentiable function for all x$$\in$$R. Then f(x) equals :

For x > 0, if $$f(x) = \int\limits_1^x {{{{{\log }_e}t} \over {(1 + t)}}dt} $$, then $$f(e) + f\left( {{1 \over e}} \

Let $$A = \{ 1,2,3,....,10\} $$ and $$f:A \to A$$ be defined as$$f(k) = \left\{ {\matrix{ {k + 1} & {if\,k\,is\,o

Let A1 be the area of the region bounded by the curves y = sinx, y = cosx and y-axis in the first quadrant. Also, let A2

Let $$f(x) = {\sin ^{ - 1}}x$$ and $$g(x) = {{{x^2} - x - 2} \over {2{x^2} - x - 6}}$$. If $$g(2) = \mathop {\lim }\limi

Let f : R $$ \to $$ R be defined as $$f(x) = \left\{ \matrix{ 2\sin \left( { - {{\pi x} \over 2}} \right),if\,x <

If the locus of the mid-point of the line segment from the point (3, 2) to a point on the circle, x2 + y2 = 1 is a circl

If vectors $$\overrightarrow {{a_1}} = x\widehat i - \widehat j + \widehat k$$ and $$\overrightarrow {{a_2}} = \wideha

A seven digit number is formed using digits 3, 3, 4, 4, 4, 5, 5. The probability, that number so formed is divisible by

The total number of 4-digit numbers whose greatest common divisor with 18 is 3, is _________.

If the matrix $$A = \left[ {\matrix{ 1 & 0 & 0 \cr 0 & 2 & 0 \cr 3 & 0 & { - 1} \c

Let $$\alpha$$ and $$\beta$$ be two real numbers such that $$\alpha$$ + $$\beta$$ = 1 and $$\alpha$$$$\beta$$ = $$-$$1.

Let z be those complex numbers which satisfy| z + 5 | $$ \le $$ 4 and z(1 + i) + $$\overline z $$(1 $$-$$ i) $$ \ge $$ $

If the arithmetic mean and geometric mean of the pth and qth terms of the sequence $$-$$16, 8, $$-$$4, 2, ...... satisfy

If $${I_{m,n}} = \int\limits_0^1 {{x^{m - 1}}{{(1 - x)}^{n - 1}}dx} $$, for m, $$n \ge 1$$, and $$\int\limits_0^1 {{{{x^

Let X1, X2, ......., X18 be eighteen observations such that $$\sum\limits_{i = 1}^{18} {({X_i} - } \alpha ) = 36$$ and $

Let a be an integer such that all the real roots of the polynomial 2x5 + 5x4 + 10x3 + 10x2 + 10x + 10 lie in the interva

Draw the output signal Y in the given combination of gates.

An aeroplane, with its wings spread 10 m, is flying at a speed of 180 km/h in a horizontal direction. The total intensit

Find the peak current and resonant frequency of the following circuit (as shown in figure).

A scooter accelerates from rest for time t1 at constant rate a1 and then retards at constant rate a2 for time t2 and com

Given below are two statements: Statement I : An electric dipole is placed at the center of a hollow sphere. The flux of

If 'C' and 'V' represent capacity and voltage respectively then what are the dimensions of $$\lambda$$ where C/V = $$\la

The recoil speed of a hydrogen atom after it emits a photon in going from n = 5 state to n = 1 state will be :

A wire of 1$$\Omega$$ has a length of 1 m. It is stretched till its length increases by 25%. The percentage change in re

The incident ray, reflected ray and the outward drawn normal are denoted by the unit vectors $$\overrightarrow a $$, $$\

The internal energy (U), pressure (P) and volume (V) of an ideal gas are related as U $$=$$ 3PV + 4. The gas is :

The length of metallic wire is l1 when tension in it is T1. It is l2 when the tension is T2. The original length of the

The trajectory of a projectile in a vertical plane is y = $$\alpha$$x $$-$$ $$\beta$$x2, where $$\alpha$$ and $$\beta$$

Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R.Assertion A : For a

An inclined plane making an angle of 30$$^\circ$$ with the horizontal is placed in a uniform horizontal electric field $

Two masses A and B, each of mass M are fixed together by a massless spring. A force acts on the mass B as shown in the f

A cord is wound round the circumference of wheel of radius r. The axis of the wheel is horizontal and the moment of iner

A particle executes S.H.M., the graph of velocity as a function of displacement is :

A tuning fork A of unknown frequency produces 5 beats/s with a fork of known frequency 340 Hz. When fork A is filed, the

Given below are two statements :Statement I : A second's pendulum has a time period of 1 second.Statement II : It takes

1 mole of rigid diatomic gas performs a work of $${Q \over 5}$$ when heat Q is supplied to it. The molar heat capacity o

A particle executes S.H.M. with amplitude 'a', and time period 'T'. The displacement of the particle when its speed is h

Time period of a simple pendulum is T. The time taken to complete $${5 \over 8}$$ oscillations starting from mean positi

The zener diode has a Vz = 30V. The current passing through the diode for the following circuit is ________ mA.

The volume V of a given mass of monoatomic gas changes with temperature T according to the relation $$V = K{T^{{2 \over

27 similar drops of mercury are maintained at 10V each. All these spherical drops combine into a single big drop. The po

A point source of light S, placed at a distance 60cm in front of the centre of a plane mirror of width 50 cm, hangs ver

In the reported figure of earth, the value of acceleration due to gravity is same at point A and C but it is smaller tha

Two stream of photons, possessing energies equal to twice and ten times the work function of metal are incident on the m