Experimentally reducing a functional group cannot be done by which one of the following reagents?

Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endoth

Identify A in the following reaction.

In the following sequence of reactions a compound A, (molecular formula C6H12O2) with a straight chain structure gives a

The Crystal Field Stabilization Energy (CFSE) and magnetic moment (spin-only) of an octahedral aqua complex of a metal i

Which one of the following compounds is aromatic in nature?

In the given chemical reaction, colors of the Fe2+ and Fe3+ ions, are respectively :5Fe2+ + MnO$$_4^ - $$ + 8H+ $$\to$$

The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :

In the following sequence of reactions,The compounds B and C respectively are :-

Given below are two statements :Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a

Which one of the following gives the most stable Diazonium salt?

The potassium ferrocyanide solution gives a Prussian blue colour, when added to :

Number of paramagnetic oxides among the following given oxides is ____________.Li2O, CaO, Na2O2, KO2, MgO and K2O

Identify the element for which electronic configuration in +3 oxidation state is [Ar]3d5 :

The molar solubility of Zn(OH)2 in 0.1 M NaOH solution is x $$\times$$ 10$$-$$18 M. The value of x is _________ (Nearest

For the reaction, 2NO2(g) $$\rightleftharpoons$$ N2O4(g), when $$\Delta$$S = $$-$$176.0 JK$$-$$1 and $$\Delta$$H = $$-$$

The sum of oxidation states of two silver ions in [Ag(NH3)2] [Ag(CN)2] complex is _____________.

The number of atoms in 8g of sodium is x $$\times$$ 1023. The value of x is ____________. (Nearest integer)[Given : NA =

If 80 g of copper sulphate CuSO4 . 5H2O is dissolved in deionised water to make 5L of solution. The concentration of the

A 50 watt bulb emits monochromatic red light of wavelength of 795 nm. The number of photons emitted per second by the bu

The spin-only magnetic moment value of $$B_2^ + $$ species is _____________ $$\times$$ 10$$-$$2 BM. (Nearest integer) [G

If the conductivity of mercury at 0$$^\circ$$C is 1.07 $$\times$$ 106 S m$$-$$1 and the resistance of a cell containing

A peptide synthesized by the reactions of one molecule each of Glycine, Leucine, Aspartic acid and Histidine will have _

Let f : R $$\to$$ R be a continuous function. Then $$\mathop {\lim }\limits_{x \to {\pi \over 4}} {{{\pi \over 4}\int\

$${\cos ^{ - 1}}(\cos ( - 5)) + {\sin ^{ - 1}}(\sin (6)) - {\tan ^{ - 1}}(\tan (12))$$ is equal to :(The inverse trigono

Consider the system of linear equations$$-$$x + y + 2z = 03x $$-$$ ay + 5z = 12x $$-$$ 2y $$-$$ az = 7Let S1 be the set

Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :

If y = y(x) is the solution curve of the differential equation $${x^2}dy + \left( {y - {1 \over x}} \right)dx = 0$$ ; x

The function $$f(x) = {x^3} - 6{x^2} + ax + b$$ is such that $$f(2) = f(4) = 0$$. Consider two statements :Statement 1 :

Let $${J_{n,m}} = \int\limits_0^{{1 \over 2}} {{{{x^n}} \over {{x^m} - 1}}dx} $$, $$\forall$$ n > m and n, m $$\in$$

The area, enclosed by the curves $$y = \sin x + \cos x$$ and $$y = \left| {\cos x - \sin x} \right|$$ and the lines $$x

The distance of line $$3y - 2z - 1 = 0 = 3x - z + 4$$ from the point (2, $$-$$1, 6) is :

The numbers of pairs (a, b) of real numbers, such that whenever $$\alpha$$ is a root of the equation x2 + ax + b = 0, $$

Let P1, P2, ......, P15 be 15 points on a circle. The number of distinct triangles formed by points Pi, Pj, Pk such that

The range of the function, $$f(x) = {\log _{\sqrt 5 }}\left( {3 + \cos \left( {{{3\pi } \over 4} + x} \right) + \cos \le

Let a1, a2, ..........., a21 be an AP such that $$\sum\limits_{n = 1}^{20} {{1 \over {{a_n}{a_{n + 1}}}} = {4 \over 9}}

The function f(x), that satisfies the condition $$f(x) = x + \int\limits_0^{\pi /2} {\sin x.\cos y\,f(y)\,dy} $$, is :

Let X be a random variable with distribution. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:blac

Let $$f(x) = {x^6} + 2{x^4} + {x^3} + 2x + 3$$, x $$\in$$ R. Then the natural number n for which $$\mathop {\lim }\limit

If for the complex numbers z satisfying | z $$-$$ 2 $$-$$ 2i | $$\le$$ 1, the maximum value of | 3iz + 6 | is attained a

Let the points of intersections of the lines x $$-$$ y + 1 = 0, x $$-$$ 2y + 3 = 0 and 2x $$-$$ 5y + 11 = 0 are the mid

Let f(x) be a polynomial of degree 3 such that $$f(k) = - {2 \over k}$$ for k = 2, 3, 4, 5. Then the value of 52 $$-$$

All the arrangements, with or without meaning, of the word FARMER are written excluding any word that has two R appearin

Let $$\overrightarrow a = 2\widehat i - \widehat j + 2\widehat k$$ and $$\overrightarrow b = \widehat i + 2\widehat j

Let [t] denote the greatest integer $$\le$$ t. The number of points where the function $$f(x) = [x]\left| {{x^2} - 1} \r

A man starts walking from the point P($$-$$3, 4), touches the x-axis at R, and then turns to reach at the point Q(0, 2).

A cube is placed inside an electric field, $$\overrightarrow E = 150{y^2}\widehat j$$. The side of the cube is 0.5 m an

A square loop of side 20 cm and resistance 1$$\Omega$$ is moved towards right with a constant speed v0. The right arm of

The temperature of an ideal gas in 3-dimensions is 300 K. The corresponding de-Broglie wavelength of the electron approx

A body of mass 'm' dropped from a height 'h' reaches the ground with a speed of 0.8$$\sqrt {gh} $$. The value of workdon

The ranges and heights for two projectiles projected with the same initial velocity at angles 42$$^\circ$$ and 48$$^\cir

A block of mass m slides on the wooden wedge, which in turn slides backward on the horizontal surface. The acceleration

Due to cold weather a 1 m water pipe of cross-sectional area 1 cm2 is filled with ice at $$-$$10$$^\circ$$C. Resistive h

A student determined Young's Modulus of elasticity using the formula $$Y = {{Mg{L^3}} \over {4b{d^3}\delta }}$$. The val

Two resistors R1 = (4 $$\pm$$ 0.8) $$\Omega$$ and R2 = (4 $$\pm$$ 0.4) $$\Omega$$ are connected in parallel. The equival

Following plots show magnetization (M) vs magnetizing field (H) and magnetic susceptibility ($$\chi $$) vs temperature (

A glass tumbler having inner depth of 17.5 cm is kept on a table. A student starts pouring water ($$\mu$$ = 4/3) into it

In the given figure, each diode has a forward bias resistance of 30$$\Omega$$ and infinite resistance in reverse bias. T

For the given circuit the current i through the battery when the key in closed and the steady state has been reached is

An object of mass 'm' is being moved with a constant velocity under the action of an applied force of 2N along a frictio

A mass of 5 kg is connected to a spring. The potential energy curve of the simple harmonic motion executed by the system

A capacitor is connected to a 20 V battery through a resistance of 10$$\Omega$$. It is found that the potential differen

Four particles each of mass M, move along a circle of radius R under the action of their mutual gravitational attraction

Electric field of plane electromagnetic wave propagating through a non-magnetic medium is given by E = 20cos(2 $$\times$

There are two infinitely long straight current carrying conductors and they are held at right angles to each other so th

The temperature of 3.00 mol of an ideal diatomic gas is increased by 40.0$$^\circ$$C without changing the pressure of th

The width of one of the two slits in a Young's double slit experiment is three times the other slit. If the amplitude of

Two satellites revolve around a planet in coplanar circular orbits in anticlockwise direction. Their period of revolutio

When a body slides down from rest along a smooth inclined plane making an angle of 30$$^\circ$$ with the horizontal, it

The average translational kinetic energy of N2 gas molecules at .............$$^\circ$$C becomes equal to the K.E. of an

A uniform heating wire of resistance 36$$\Omega$$ is connected across a potential difference of 240 V. The wire is then

A steel rod with y = 2.0 $$\times$$ 1011 Nm$$-$$2 and $$\alpha$$ = 10$$-$$5 $$^\circ$$C$$-$$1 of length 4 m and area of

A 2 kg steel rod of length 0.6 m is clamped on a table vertically at its lower end and is free to rotate in vertical pla

An engine is attached to a wagon through a shock absorber of length 1.5 m. The system with a total mass of 40,000 kg is