In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents used are

The electrochemical cell shown below is a concentration cell. M | M2+ (saturated solution of a sparingly soluble salt, M

The electrochemical cell shown below is a concentration cell. M | M2+ (saturated solution of a sparingly soluble salt, M

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g of water. the elevation in boil

The major product H of the given reaction sequence is $$C{H_3} - C{H_2} - CO - C{H_3}\buildrel {\overline C N} \over \l

$$NiC{l_2}{\{ P{({C_2}{H_5})_2}({C_6}{H_5})\} _2}$$ exhibits temperature-dependent magnetic behaviour (paramagnetic/diam

The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. T

The shape of XeO2F2 molecule is

The compound that undergoes decarboxylation most readily under mild condition is

Using the data provided, calculate the multiple bond energy (kJ mol$$-$$1) of a C=C bond in C2H2. That energy is (take t

The compound I is

The compound K is

Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is

25 mL of household bleach solution was mixed with 30 mL of 0.50 M KI and 10 mL of 4 N acetic acid. In the titration of t

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the

For the given aqueous reactions, which of the statement(s) is(are) true?

With reference to the scheme given, which of the given statement(s) about T, U, V and W is(are) correct?

Which of the given statement(s) about N, O, P and Q with respect to M is(are) correct?

With respect to graphite and diamond, which of the statement(s) given below is(are) correct?

The given graphs/data I, II, III and IV represent general trends observed for different physisorption and chemisorption

Let $${{a_n}}$$ denote the number of all n-digit positive integers formed by the digits 0, 1 or both such that no conse

If the straight lines $$\,{{x - 1} \over 2} = {{y + 1} \over k} = {z \over 2}$$ and $${{x + 1} \over 5} = {{y + 1} \over

The equation of a plane passing through the line of intersection of the planes $$x+2y+3z=2$$ and $$x-y+z=3$$ and at a di

If $$\overrightarrow a $$ and $$\overrightarrow b $$ are vectors such that $$\left| {\overrightarrow a + \overrightarr

Let $$X$$ and $$Y$$ be two events such that $$P\left( {X|Y} \right) = {1 \over 2},$$ $$P\left( {Y|X} \right) = {1 \over

Four fair dice $${D_1,}$$ $${D_2,}$$ $${D_3}$$ and $${D_4}$$ ; each having six faces numbered $$1, 2, 3, 4, 5$$ and $$6$

The value of the integral $$\int\limits_{ - \pi /2}^{\pi /2} {\left( {{x^2} + 1n{{\pi + x} \over {\pi - x}}} \right)\c

Let $$f\left( x \right) = {\left( {1 - x} \right)^2}\,\,{\sin ^2}\,\,x + {x^2}$$ for all $$x \in IR$$ and let $$g\left(

Let $$f\left( x \right) = {\left( {1 - x} \right)^2}\,\,{\sin ^2}\,\,x + {x^2}$$ for all $$x \in IR$$ and let $$g\left(

If $$f\left( x \right) = \int_0^x {{e^{{t^2}}}} \left( {t - 2} \right)\left( {t - 3} \right)dt$$ for all $$x \in \left(

Let $$PQR$$ be a triangle of area $$\Delta $$ with $$a=2$$, $$b = {7 \over 2}$$ and $$c = {5 \over 2}$$; where $$a, b,$$

A tangent PT is drawn to the circle $${x^2}\, + {y^2} = 4$$ at the point P $$\left( {\sqrt 3 ,1} \right)$$. A straight l

A tangent PT is drawn to the circle $${x^2}\, + {y^2} = 4$$ at the point P $$\left( {\sqrt 3 ,1} \right)$$. A straight l

Let $${a_1},{a_2},{a_3},.....$$ be in harmonic progression with $${a_1} = 5$$ and $${a_{20}} = 25.$$ The least positive

Let $${{a_n}}$$ denote the number of all n-digit positive integers formed by the digits 0, 1 or both such that no conse

If P is a 3 $$\times$$ 3 matrix such that PT = 2P + I, where PT is the transpose of P and I is the 3 $$\times$$ 3 identi

Let $$\alpha$$(a) and $$\beta$$(a) be the roots of the equation $$(\root 3 \of {1 + a} - 1){x^2} + (\sqrt {1 + a} - 1)

For every integer n, let an and bn be real numbers. Let function f : R $$\to$$ R be given by $$f(x) = \left\{ {\matrix{

If the ad joint of a 3 $$\times$$ 3 matrix P is $$\left[ {\matrix{ 1 & 4 & 4 \cr 2 & 1 & 7 \cr 1 & 1 & 3 \

Let $$f:( - 1,1) \to R$$ be such that $$f(\cos 4\theta ) = {2 \over {2 - {{\sec }^2}\theta }}$$ for $$\theta \in \left(

Two identical discs of same radius R are rotating about their axes in opposite directions with the same constant angular

Six point charges are kept at the vertices of a regular hexagon of side $$L$$ and center $$O,$$ as shown in the figure.

In the given circuit, a charge of $$+80$$ $$\mu C$$ is given to the upper plate of the $$4$$ $$\mu F$$ capacitor. Then i

A student is performing the experiment of resonance Column. The diameter of the column tube is 4 cm. The frequency of th

Two moles of ideal helium gas are in a rubber balloon at 30oC. The balloon is fully expandable and can be assumed to req

A thin uniform cylindrical shell, closed at both ends, is partially filled with water. It is floating vertically in wate

Two spherical planets P and Q have the same uniform density r, masses MP and MQ and surface areas A and 4A respectively.

The figure shows a system consisting of (i) a ring of outer radius 3R rolling clockwise without slipping on a horizontal

Two solid cylinders P and Q of same mass and same radius start rolling down a fixed inclined plane from the same height

Consider a disc rotating in the horizontal plane with a constant angular speed $$\omega $$ about its centre O. The disc

A loop carrying current $$l$$ lies in the xy-plane as shown in the figure. The unit vector $$\widehat k$$ is coming out

An infinite long hollow conducting cylinder with inner radius R/2 and outer radius R carries a uniform current density a

Which of the following statements about the instantaneous axis (passing through the centre of mass) is correct?

Which of the following statements regarding the angular speed about the instantaneous axis (passing through the centre o

What is the maximum energy of the anti-neutrino?

If the anti-neutrino had a mass of 3 eV/c2 (where c is the speed of light) instead of zero mass, what should be the rang

For light incident from air on a meta-material, the appropriate ray diagram is

Choose the correct statement.

In the given circuit, the AC source has $$\omega$$ = 100 rad/s. Considering the inductor and capacitor to be ideal, the

A current carrying infinitely long wire is kept along the diameter of a circular wire loop, without touching it, the cor