Which one of the following complexes is violet in colour?

Which one of the following when dissolved in water gives coloured solution in nitrogen atmosphere?

The major products formed in the following reaction sequence A and B are :

The major product formed in the following reaction is :

The major product formed in the following reaction is :

Given below are two statements :Statement I : The limiting molar conductivity of KCl (strong electrolyte) is higher comp

The correct options for the products A and B of the following reactions are :

Given below are two statements.Statement I : In the titration between strong acid and weak base methyl orange is suitabl

Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil

Given below are two statements.Statement I : According to Bohr's model of an atom, qualitatively the magnitude of veloci

The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is :

Excess of isobutane on reaction with Br2 in presence of light at 125$$^\circ$$C gives which one of the following, as the

AB3 is an interhalogen T-shaped molecule. The number of lone pairs of electrons on A is __________. (Integer answer)

These are physical properties of an element(A) Sublimation enthalpy(B) Ionisation enthalpy(C) Hydration enthalpy(D) Elec

Of the following four aqueous solutions, total number of those solutions whose freezing point is lower than that of 0.10

The OH$$-$$ concentration in a mixture of 5.0 mL of 0.0504 M NH4Cl and 2 mL of 0.0210 M NH3 solution is x $$\times$$ 10$

The number of 4f electrons in the ground statement electronic configuration of Gd2+ is ___________. [Atomic number of Gd

The ratio of number of water molecules in Mohr's salt and potash alum is ____________ $$\times$$ 10$$-$$1. (Integer answ

The following data was obtained for chemical reaction given below at 975 K.2NO(g) + 2H2(g) $$\to$$ N2(g) + 2H2O(g)The or

The Born-Haber cycle for KCl is evaluated with the following data :$${\Delta _f}{H^\Theta }$$ for KCl = $$-$$436.7 kJ mo

The total number of negative charge in the tetrapeptide, Gly-Glu-Asp-Tyr, at pH 12.5 will be ______________. (Integer an

An aqueous KCl solution of density 1.20 g mL$$-$$1 has a molality of 3.30 mol kg$$-$$1. The molarity of the solution in

The mean and standard deviation of 20 observations were calculated as 10 and 2.5 respectively. It was found that by mist

Let y = y(x) be a solution curve of the differential equation $$(y + 1){\tan ^2}x\,dx + \tan x\,dy + y\,dx = 0$$, $$x \i

Let A and B be independent events such that P(A) = p, P(B) = 2p. The largest value of p, for which P (exactly one of A,

Let $$\theta \in \left( {0,{\pi \over 2}} \right)$$. If the system of linear equations$$(1 + {\cos ^2}\theta )x + {\si

Let $$f(x) = \cos \left( {2{{\tan }^{ - 1}}\sin \left( {{{\cot }^{ - 1}}\sqrt {{{1 - x} \over x}} } \right)} \right)$$,

Out of all the patients in a hospital 89% are found to be suffering from heart ailment and 98% are suffering from lungs

The equation $$\arg \left( {{{z - 1} \over {z + 1}}} \right) = {\pi \over 4}$$ represents a circle with :

If a line along a chord of the circle 4x2 + 4y2 + 120x + 675 = 0, passes through the point ($$-$$30, 0) and is tangent t

The value of $$\int\limits_{{{ - 1} \over {\sqrt 2 }}}^{{1 \over {\sqrt 2 }}} {{{\left( {{{\left( {{{x + 1} \over {x - 1

If $$A = \left( {\matrix{ {{1 \over {\sqrt 5 }}} & {{2 \over {\sqrt 5 }}} \cr {{{ - 2} \over {\sqrt 5 }}} &a

If the sum of an infinite GP a, ar, ar2, ar3, ....... is 15 and the sum of the squares of its each term is 150, then the

Let $$z = {{1 - i\sqrt 3 } \over 2}$$, $$i = \sqrt { - 1} $$. Then the value of $$21 + {\left( {z + {1 \over z}} \right)

The sum of all integral values of k (k $$\ne$$ 0) for which the equation $${2 \over {x - 1}} - {1 \over {x - 2}} = {2 \o

If $${}^1{P_1} + 2.{}^2{P_2} + 3.{}^3{P_3} + .... + 15.{}^{15}{P_{15}} = {}^q{P_r} - s,0 \le s \le 1$$, then $${}^{q + s

A wire of length 36 m is cut into two pieces, one of the pieces is bent to form a square and the other is bent to form a

The area of the region $$S = \{ (x,y):3{x^2} \le 4y \le 6x + 24\} $$ is ____________.

The locus of a point, which moves such that the sum of squares of its distances from the points (0, 0), (1, 0), (0, 1),

If y = y(x) is an implicit function of x such that loge(x + y) = 4xy, then $${{{d^2}y} \over {d{x^2}}}$$ at x = 0 is equ

The number of three-digit even numbers, formed by the digits 0, 1, 3, 4, 6, 7 if the repetition of digits is not allowed

Let a, b $$\in$$ R, b $$\in$$ 0, Define a function $$f(x) = \left\{ {\matrix{ {a\sin {\pi \over 2}(x - 1),} & {f

The fractional change in the magnetic field intensity at a distance 'r' from centre on the axis of current carrying coil

The magnitude of vectors $$\overrightarrow {OA} $$, $$\overrightarrow {OB} $$ and $$\overrightarrow {OC} $$ in the given

Car B overtakes another car A at a relative speed of 40 ms$$-$$1. How fast will the image of car B appear to move in the

Inside a uniform spherical shell :(1) the gravitational field is zero(2) the gravitational potential is zero(3) the grav

Two narrow bores of diameter 5.0 mm and 8.0 mm are joined together to form a U-shaped tube open at both ends. If this U-

An electric appliance supplies 6000 J/min heat to the system. If the system delivers a power of 90W. How long it would t

An inductor coil stores 64 J of magnetic field energy and dissipates energy at the rate of 640 W when a current of 8A is

A series LCR circuit driven by 300 V at a frequency of 50 Hz contains a resistance R = 3 k$$\Omega$$, an inductor of ind

Identify the logic operation carried out by the given circuit :-

A particular hydrogen like ion emits radiation of frequency 2.92 $$\times$$ 1015 Hz when it makes transition from n = 3

In a photoelectric experiment ultraviolet light of wavelength 280 nm is used with lithium cathode having work function $

In the given figure, the emf of the cell is 2.2 V and if internal resistance is 0.6$$\Omega$$. Calculate the power dissi

A solid metal sphere of radius R having charge q is enclosed inside the concentric spherical shell of inner radius a and

The rms speeds of the molecules of Hydrogen, Oxygen and Carbon dioxide at the same temperature are VH, VO and VC respect

In a Screw Gauge, fifth division of the circular scale coincides with the reference line when the ratchet is closed. The

What equal length of an iron wire and a copper-nickel alloy wire, each of 2 mm diameter connected parallel to give an eq

The initial mass of a rocket is 1000 kg. Calculate at what rate the fuel should be burnt so that the rocket is given an

If E, L, M and G denote the quantities as energy, angular momentum, mass and constant of gravitation respectively, then

The material filled between the plates of a parallel plate capacitor has resistivity 200 $$\Omega$$m. The value of capac

Statement I : By doping silicon semiconductor with pentavalent material, the electrons density increases.Statement II :

A uniform chain of length 3 meter and mass 3 kg overhangs a smooth table with 2 meter lying on the table. If k is the ki

The electric field in a plane electromagnetic wave is given by $$\overrightarrow E = 200\cos \left[ {\left( {{{0.5 \tim

Two spherical balls having equal masses with radius of 5 cm each are thrown upwards along the same vertical direction at

A soap bubble of radius 3 cm is formed inside the another soap bubble of radius 6 cm. The radius of an equivalent soap b

Two short magnetic dipoles m1 and m2 each having magnetic moment of 1 Am2 are placed at point O and P respectively. The

Two travelling waves produces a standing wave represented by equation,y = 1.0 mm cos(1.57 cm$$-$$1) x sin(78.5 s$$-$$1)t

White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation between

Consider a badminton racket with length scales as shown in the figure.If the mass of the linear and circular portions of