List of top Questions asked in KEAM- 2014

The dimensions of mobility of charge carriers are

The speed of light in an isotropic medium depends on

The fusion reaction in the sun is a multi-step process in which the

The entropy of vaporization of a liquid is $58 \, JK^{-1} \,mol^{-1}$. If $100\, g$ of its vapour condenses at its boiling point of $123^{\circ}C$, the value of entropy change for the process is (Molar mass of the liquid = $58 \,g \,mol^{-1})$

Green chemistry deals with

A particle has the position vector ${r} = \hat{i} - 2\hat{j } + \hat{k}$ and the linear momentum ${p} = 2\hat{i} - \hat{j} + \hat{k}$. Its angular momentum about the origin is

A uniform wire of resistance 9 $\Omega$ is joined end-to-end to form a circle. Then the resistance of the circular wire between any two diametrically opposite points is

If $0< x< \pi$, then $\frac{\sin 8 x+7 \sin 6 x+18 \sin 4 x+12 \sin 2 x}{\sin 7 x+6 \sin 5 x+12 \sin 3 x}$ equal to

A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is

According to MO theory,

The sugar moiety present in $RNA$ molecule is

Novlac, the linear polymer used in paints is

The standard deviation of $9, 16, 23, 30, 37, 44, 51$ is

Which one of the following is not explained by adsorption?

The hybridization of central metal ion in $K_2[Ni(CN)_4]\, and\, K_2[NiCl_4]$ are respectively

Which of the following are heterosporous pteridophytes? I. Lycopodium II. Selaginella III. Equisetum IV. Salvinia

Which one of the following data has only four significant figures?

The time period of revolution of a charge $q_1$ and of mass $m$ moving in a circular path of radius $r$ due to Coulomb force of attraction with another charge $q_2$ at its centre is

Aminoacylation of tRNA is essential for

Two blocks of masses $2\,kg$ and $4\,kg$ are attached by an inextensible light string as shown in the figure. If a force of $120\,N$ pulls the blocks vertically upward, the tension in the string is (take $g = 10\, ms^{-2}$)

The significant result deduced from the Rutherford�s scattering experiment is that

Match the following and choose the correct combination from the options given.

Match Column I with Column II and choose the correct answer.

The $t_{\frac{1}{2}}$ for a zero order reaction at the initial concentration of 6x 10M is one minute at $27^{\circ}C$. The rate constant at $27^{\circ}C$ in mol $dm^{-3}s^{-1}$ is

The release of sperms from the seminiferous tubules is called