List of practice Questions

The value of $\binom{30}{0}\binom{30}{10}-\binom{30}{1}\binom{30}{11}+\binom{30}{2}\binom{30}{12} .....+ \binom{30}{20}\binom{30}{30}$ is where $\binom{n}{r} = ^{n}C_{r}$

The value of $c$ in Rolle's theorem for the function $f(x) = x^3 - 3x$ in the interval $\left[0, \sqrt{3}\right]$ is

The value of azimuthal quantum number for electrons present in $6p$-orbitals is

The value of $2^{1/4}.4^{1/8}. 8^{1/6}....\infty $ is

The value of activation energy for a chemical reaction is primarily dependent on

The value of angle of dip is zero at the magnetic equator because on it

The value of 1.2.3 + 2.3.4 +3.4.5 + ... + n terms is

The value of $1^2.C_1 + 3^2.C_3 + 5^2.C_5 + ...$ is :

The value of $\frac{1}{81^n}-\frac{10}{81^n}\,^{2n}C_1+\frac{10^2}{81^n}\,^{2n}C_2-\frac{10^3}{81^n}\,^{2n}C_3+.....+\frac{10^{2n}}{81^n}is$

The value of $\left(1+i\right)^{4} \left(1+\frac{1}{i}\right)^{4}$ is

The uppermost region of the atmosphere is called

The valence shell electronic configuration of alkali metals is

The valency of Cr in the complex $[Cr(H_2O)_4Cl_2)^+$ is

The value o $\frac{3+cot\,76^\circ cot\,16^\circ}{cot\,76^\circ + cot\,16^\circ} is $

The unit of the quantity g/G in SI will be

The unit of thermal conductance is

The units of dipole moment is

The units of ionic product of water $(K_w)$ are

The unit of permittivity is same as that of

The unit of pole strength is :

The unit of potential energy is

The unit of inductance is equivalent to

The unit of dipole moment is

The unit of electric dipole moment is

The unit of electric dipole moment is :