List of top Questions asked in KEAM

Consider the following species 1 . $[O_2]^{2-}$ 2. $[CO]^+ $ 3. $[O_2]^+$ Among these sigma bond alone is present in
The power dissipated in an AC circuit is zero if the circuit is
The principle of superposition is basic to the phenomenon of
If V is the gravitational potential on the surface of the earth, then what is its value at the centre of earth?
In a polysaccharide, the individual monosaccharides are linked by a:
In an amplitude modulation with modulation index $0.5$, the ratio of the amplitude of the carrier wave to that of the side band in the modulated wave is
When $SO_2$ gas is passed into aqueous $Na_2CO_3$ the product(s) formed is (are)
In Young?s double slit experiment, to increase the fringe width
Light travels in two media $A$ and $B$ with speeds $1.8 \times 10^8 ms^{-1}$ and $ 2.4 \times 10^8 ms^{-1}$ respectively. Then the critical angle between them is
From the ground, a projectile is fired at an angle of $60$ degrees to the horizontal with a speed of $20\, m/s^{-1}$. Take acceleration due to gravity as $10 \, m/s^{-2}$. The horizontal range of the projectile is
A particle acted upon by constant forces $( 4\hat{i}+\hat{j}-3\hat{k} )$ and $( 3\hat{i}+\hat{j}-\hat{k} )$ is displaced from the point $( \hat{i}+2\hat{j}+3\hat{k} )$ to the, point $ (5\hat{i}+4\hat{j}+\hat{k} )$ . The total work done by the forces in $SI$ unit is
Half-lives of a first order and a zero order reactions are same. Then, the ratio of the initial rates of first order reaction to that of the zero order reaction is
Identify the combination of compounds that undergo Aldol condensation followed by dehydration to produce but-$2$-enal
A particle starts from rest at $ t=0 $ and moves in a straight line with an acceleration as shown in figure. The velocity of the particle at $ t=3\text{ }s $ is
Some carboxylic acids and their $IUPAC$ names are given below. Which of the following is not correctly matched?
Which one of the following is not a statement?
The artificial sweetener containing chlorine that has the appearance and taste as that of sugar and stable at cooking temperature is
A potentiometer wire, $ 10 \,m $ long, has a resistance of $ 40\,\Omega $ . It is connected in series with a resistance box and a $ 2 \,V $ storage cell. If the potential gradient along the wire is $(0.1\, mV/cm)$, the resistance unplugged in the box is
The compound which does not lead to benzoic acid by oxidation with $KMnO_4$ is
The correct formula of borax is
The decreasing order of boiling points of alkyl halides is
The effective resistance across the points A and I is
The electrical conductivity of an intrinsic semiconductor at 0K is
The electronegativities of $N, C, Si$ and P are in the order
Total number of degrees of freedom of a rigid diatomic molecule is