List of top Questions asked in AIIMS

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A): Frictional forces are conservative forces. 

Reason (R): Potential energy can be associated with frictional forces.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : A person standing on a rotating platform suddenly stretched his arms. The platform slows down. 

Reason (R) : This happens as angular momentum is conserved.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : For a system of particles under central force field, the total angular momentum is conserved. 

Reason (R) : The torque acting on such a system is zero.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : \(ZrI_4\) is useful in purification of zirconium (Zr). 

Reason : \(ZrI_4\) sublimise at room temperature.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : tert-Butyl amine can be formed by Gabriel phthalimide synthesis. 

Reason : It follows \(SN_1\) mechanism.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : \(m\)-Bromotoluene can be prepared from \(m\)-toluidine. 

Reason : Amino group is \(meta\)-directing.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Two sugar units are joined by 1,2-glycosidic bond in sucralose. 

Reason : Sucralose contains \(C_1\) -glucose and \(C_2\) - fructose glycosidic bond.

In the light of the above statements, choose the correct answer from the options given below
 

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Glyceraldehyde reacts with \(Br_2/ H_2O\) to form achiral compound. 

Reason : \(-CHO\) and \(-CH_2OH\) both are oxidised.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Lyophilic colloid protects lyophobic colloid. 

Reason : Lyophilic colloid particles cover up the particles of the lyophobic colloid.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: \((CH_3)_2NH\) is less basic than \((CH_3)_3N\) in aqueous solution. 

Reason : Hyperconjugation in \((CH_3)_2NH\) is more than that in \((CH_3)_3N\).

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : tert-Butyl methyl ether reacts with \(HBr\) to form fert-butyl bromide and methanol. 

Reason : It follows \(S_N1\) mechanism.

In the light of the above statements, choose the correct answer from the options given below