List of top Questions asked in KEAM

In bringing a proton towards another proton, the electrostatic potential energy of the system
A projectile is given an initial velocity of $(\hat{i} + \hat{j})$ m/s, where $\hat{i}$ is along the ground and $\hat{j}$ is along the vertical direction. The equation of its trajectory is $(g = 10 \, \text{m/s}^2)$.
When a glass rod is rubbed with silk thread, it loses 1000 electrons. Then the charge on the glass rod is (electronic charge $e = 1.6 \times 10^{-19}$ C)
An alternating current having peak value 14.14 A is used to heat a metal wire. The value of the direct current \(i\) required to produce the same heating effect in the same wire is
When the hydrogen atom is excited from the ground state,
Half-life of radon is 3.5 days. The amount of radon left out of 12 mg mass undecayed after 35 days is nearly
For the gas phase homogeneous equilibrium:

\[ 2X(g) \rightleftharpoons 2Y(g) + Z(g) \]

$K_C$ at 400K is $1 \times 10^{-3}$ mol L-1. What is the value of $K_P$ for the equilibrium at 400K?

\[ R = 0.082 \, \text{L atm K}^{-1} \, \text{mol}^{-1} \]

0.1 M HCl and 0.1 M H2SO4 each of volume 2 mL are mixed and the volume is made up to 6 mL by adding 2 mL of 0.01 N NaCl solution. The pH of the resulting mixture is
In a ‘tug of war’ game, two persons pull each other through a massless rope. The person who wins is
The element with atomic number 111 was first named as Unununnium. What is its IUPAC name?
Conformational isomerism is not possible in
The decreasing order of reactivity of butyl bromides in \(S_N2\) reaction is
Which of the following is the most acidic compound?
When propanoic acid is treated with bromine and red phosphorus in aqueous medium, 2-bromopropanoic acid is formed. This reaction is known as
Which of the following groups is deactivating ortho-para directing in aromatic electrophilic substitution?
Gatterman reaction is used to convert benzene diazonium chloride to
The correct increasing order of basic strength is
Animal starch is
The magnetic force acting on a charged particle carrying a charge $3 \mu C$ in a magnetic field of $5$ T acting in the $y$-direction, when the particle velocity is \[ (\hat{i} + \hat{j}) \times 10^5 { ms}^{-1} \] is

Iron does not exhibit ___________ oxidation state.

A particle is describing a uniform circular motion with a certain constant speed. The INCORRECT statement is
In which of the following aqueous solutions of salt, is pH independent of the concentration of the salt?
Which one of the following is an outer orbital complex?
When sodium nitroprusside is added to sodium fusion extract the presence of sulphur is indicated by the formation of a violet colored complex. Its formula is
When n-hexane is heated to 773K at 10-20 atmosphere pressure in the presence of \(Cr_2O_3\), benzene is formed. This reaction is called