List of top Questions asked in KEAM- 2025

If T and \(\eta\) are the surface tension and coefficient of viscosity of a liquid, then with the increase of temperature

If the forces acting on two bodies of masses \(2kg\) and \(3kg\) are same, then the ratio of their respective accelerations is

The area under the curve drawn between the force \(F\) and time \(t\) is

A rain drop of mass \(10g\) falls from a height of \(50m\) from rest. If the loss of energy due to air resistance is \(3J\), then the velocity of the drop on striking the ground is \((g = 10ms^{-2})\)

If a moving body changes its position from \(x_1\) to \(x_2\) in a time interval \(\Delta t\), then \(\frac{x_2 - x_1}{\Delta t}\) is defined as

A lift with a load of \(1000kg\) is moving up against the frictional force \(2000N\). If the power delivered to it by the operating motor is 36000 W, then the speed of the lift is \((g = 10 m s^{-2})\)

A car at rest is accelerated at \(2 ms^{-2}\) for 1 minute and then retarded at \(2 ms^{-2}\) for 1 minute to attain rest. The distance travelled by the car is

Aniline on treatment with NaNO\(_2\) and HCl at 278K gives compound (Y). When the compound (Y) is treated with Cu/HBr, compound 'Z' is obtained. The compound 'Z' is

Carbylamine is obtained when aniline is

The following amines are having same molecular masses. (i) n-C\(_4\)H\(_9\)NH\(_2\) (ii) (C\(_2\)H\(_5\))\(_2\)NH (iii) C\(_2\)H\(_5\)N(CH\(_3\))\(_2\). The correct order of boiling point of the above amines is

The value of one barn in SI unit is

Which of the following vitamin deficiency causes convulsions?

Which of the following amino acid is optically inactive?

The reagent/s employed in Etard reaction is/are

Phenetole is

Acetone can be converted into 2-methylpropan-2-ol using

Which of the following is the weakest acid?

Lucas reagent is

Which of the following carboxylic acid is used in the manufacture of nylon-6,6?

An optically active compound among the following is

The hydrocarbon that forms disodium salt with excess metallic sodium is

Which of the following compound will have highest boiling point?

Which of the following compound does not exhibit aromaticity?

The ortho-, para-directing and deactivating group in aromatic electrophilic substitution reaction is

When chlorobenzene is treated with acetyl chloride in the presence of anhydrous AlCl\(_3\), 4-Chloroacetophenone is formed as the major product. It is an example of