Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non voltatile solute

In the following reaction sequence, The major product B is :

Among the statements(a)-(d) the incorrect ones are : (a) Octahedral CO(III) complexes with strong fields ligands have ve

Within each pair of elements F & Cl, S & Se, and Li & Na, respectively, the elements that release more energ

The ammonia (NH3) released on quantitative reaction of 0.6 g urea (NH2CONH2) with sodium hydroxide (NaOH) can be neutral

Which of the following statements is correct ?

A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consist

The redox reaction among the following is :

In the following reactions sequence, structure of A and B respectively will be :

For the following reactions Ks and Ke, are respectively, the rate constants for substitution and elimination and $$\mu

The number of possible optical isomers for the complexes MA2B2 with sp3 and dsp2 hydridized metal atom. respectively, is

The equation that is incorrect is :

The bond order and the magnetic characteristics of CN- are :

The correct order of stability for the following alkoxides is :

For the reaction 2H2(g) + 2NO(g) $$ \to $$ N2(g) + 2H2O(g) the observed rate expression is, rate = Kf[NO]2[H2]. The rate

Consider the following reactions : Which of these reactions are possible ?

The flocculation value of HCl for arsenic sulphide sol. is 30 m mol L-1 If H2SO4 is used for the flocculatiopn of arseni

3 g of acetic acid is added to 250 mL of 0.1 M HCL and the solution made up to 500 mL. To 20 mL of this solutions $${1 \

The standard heat of formation $$\left( {{\Delta _f}H_{298}^0} \right)$$ of ethane (in kj/mol), if the heat of combustio

Consider the following reactions : $$NaCl{\rm{ }} + {\rm{ }}{K_2}C{r_2}{O_7} + \mathop {{H_2}S{O_4}}\limits_{(conc.)} $$

Let $${a_1}$$ , $${a_2}$$ , $${a_3}$$ ,....... be a G.P. such that $${a_1}$$ < 0, $${a_1}$$ + $${a_2}$$ = 4 and $$

The coefficient of x7 in the expression (1 + x)10 + x(1 + x)9 + x2(1 + x)8 + ......+ x10 is:

The number of ordered pairs (r, k) for which 6.35Cr = (k2 - 3). 36Cr + 1, where k is an integer, is :

The value of $$\alpha $$ for which $$4\alpha \int\limits_{ - 1}^2 {{e^{ - \alpha \left| x \right|}}dx} = 5$$, is:

The locus of the mid-points of the perpendiculars drawn from points on the line, x = 2y to the line x = y is :

If the function ƒ defined on $$\left( { - {1 \over 3},{1 \over 3}} \right)$$ by f(x) = $$\left\{ {\matrix{ {{1 \over

If the mean and variance of eight numbers 3, 7, 9, 12, 13, 20, x and y be 10 and 25 respectively, then x.y is equal to _

If the system of linear equations, x + y + z = 6 x + 2y + 3z = 10 3x + 2y + $$\lambda $$z = $$\mu $$ has more than two s

If the foot of the perpendicular drawn from the point (1, 0, 3) on a line passing through ($$\alpha $$, 7, 1) is $$\left

Let ƒ(x) be a polynomial of degree 5 such that x = ±1 are its critical points. If $$\mathop {\lim }\limits_{x \to 0} \le

Let X = {n $$ \in $$ N : 1 $$ \le $$ n $$ \le $$ 50}. If A = {n $$ \in $$ X: n is a multiple of 2} and B = {n $$ \in $$

If $${{3 + i\sin \theta } \over {4 - i\cos \theta }}$$, $$\theta $$ $$ \in $$ [0, 2$$\theta $$], is a real number, then

If $$\theta $$1 and $$\theta $$2 be respectively the smallest and the largest values of $$\theta $$ in (0, 2$$\pi $$)

Let y = y(x) be a function of x satisfying $$y\sqrt {1 - {x^2}} = k - x\sqrt {1 - {y^2}} $$ where k is a constant and

Let y = y(x) be the solution curve of the differential equation, $$\left( {{y^2} - x} \right){{dy} \over {dx}} = 1$$, sa

Let $$\overrightarrow a $$ , $$\overrightarrow b $$ and $$\overrightarrow c $$ be three unit vectors such that $$\over

The area (in sq. units) of the region {(x, y) $$ \in $$ R2 | 4x2 $$ \le $$ y $$ \le $$ 8x + 12} is :

Let $$\alpha $$ and $$\beta $$ be the roots of the equation x2 - x - 1 = 0. If pk = $${\left( \alpha \right)^k} + {\l

The sum of two forces $$\overrightarrow P $$ and $$\overrightarrow Q $$ is $$\overrightarrow R $$ such that $$\left|

M grams of steam at 100oC is mixed with 200 g of ice at its melting point in a thermally insulated container. If it prod

Consider a uniform cubical box of side a on a rough floor that is to be moved by applying minimum possible force F at a

A 60 pF capacitor is fully charged by a 20 V supply. It is then disconnected from the supply and is conneced to another

A box weight 196 N on a spring balance at the north pole. Its weight recorded on the same balance if it is shifted to th

An ideal fluid flows (laminar flow) through a pipe of non-uniform diameter. The maximum and minimum diameters of the pip

In a Young's double slit experiment, the separation between the slits is 0.15 mm. in the experiment, a source of light o

Under an adiabatic process, the volume of an ideal gas gets doubled. Consequently the mean collision time between the ga

The electric field of a plane electromagnetic wave is given by $$\overrightarrow E = {E_0}{{\widehat i + \widehat j} \o

A thin lens made of glass (refractive index = 1.5) of focal length f = 16 cm is immersed in a liquid of refractive index

An elevator in a building can carry a maximum of 10 persons, with the average mass of each person being 68 kg, The mass

In the figure, potential difference between A and B is :

The dimension of $${{{B^2}} \over {2{\mu _0}}}$$, where B is magnetic field and $${{\mu _0}}$$ is the magnetic permeabi

In a building there are 15 bulbs of 45 W, 15 bulbs of 100 W, 15 small fans of 10 W and 2 heaters of 1 kW. The voltage of

A mass of 10 kg is suspended by a rope of length 4 m, from the ceiling. A force F is applied horizontally at the mid poi

A planar loop of wire rotates in a uniform magnetic field. Initially at t = 0, the plane of the loop is perpendicular to

An emf of 20 V is applied at time t = 0 to a circuit containing in series 10 mH inductor and 5 $$\Omega $$ resistor. The

A particle of mass m and charge q has an initial velocity $$\overrightarrow v = {v_0}\widehat j$$ . If an electric fiel

Mass per unit area of a circular disc of radius $$a$$ depends on the distance r from its centre as $$\sigma \left( r \ri

An electron (of mass m) and a photon have the same energy E in the range of a few eV. The ratio of the de-Broglie wavele