List of top Questions asked in KEAM- 2014

Green chemistry deals with
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
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
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
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
The first recombinant DNA was constructed by linking an antibiotic resistant gene with the native plasmid of
Select the correct statement:
Oxidative decarboxylation of pyruvic acid results in the formation of I. $\quad$Acetyl CoA II. $\quad$C0$^2$ III. $\quad$ATP IV. $\quad$NADH + H$_+$
One hormone hastens the maturity period in juvenile conifers, a second hormone controls xylem differentiation while the third increases the tolerance of plants to various stresses and they are respectively
Match the sub-stage of prophase I of meiosis in Column 1 and the events in Column II and choose the right option.