Question 1: Palette 1/7

JEE Advanced 2025 MCQ

For the reaction sequence given below, the correct statement(s) is(are)

(In the options, X is any atom other than carbon and hydrogen, and it is different in P, Q and R)

A

C–X bond length in P, Q and R follows the order Q > R > P.

B

C–X bond enthalpy in P, Q and R follows the order R > P > Q.

C

Relative reactivity toward S_N2 reaction in P, Q and R follows the order P > R > Q.

D

pK_a value of the conjugate acids of the leaving groups in P, Q and R follows the order R > Q > P.

Question 2: Palette 2/7

JEE Advanced 2023 MCQ

In the following reactions, $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ are the major products.




The correct statement about $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is :

A

$\mathbf{P}$ is a primary alcohol with four carbons.

B

$\mathbf{Q}$ undergoes Kolbe's electrolysis to give an eight-carbon product.

C

$\mathbf{R}$ has six carbons and it undergoes Cannizzaro reaction.

D

$\mathbf{S}$ is a primary amine with six carbons.

Question 3: Palette 3/7

JEE Advanced 2015 MSQ

Compound(s) that on hydrogenation produce(s) optically inactive compound(s) is(are)

A

B

C

D

Question 4: Palette 4/7

JEE Advanced 2013 MCQ

KI in acetone, undergoes S_N2 reaction with each of P, Q, R and S. The rates of the reaction vary as

A

P > Q > R > S

B

S > P > R > Q

C

P > R > Q > S

D

R > P > S > Q

Question 5: Palette 5/7

JEE Advanced 2008 MSQ

The correct statement(s) about the compound given below is(are):

A

The compound is optically active.

B

The compound possesses centre of symmetry.

C

The compound possesses plane of symmetry.

D

The compound possesses axis of symmetry.

Question 6: Palette 6/7

JEE Advanced 2008 MCQ

The major product of the following reaction is:

A

B

C

D

Question 7: Palette 7/7

JEE Advanced 2008 MCQ

Statement 1 : Bromobenzene upon reaction with Br$_2$/Fe gives 1, 4-dibromobenzene as the major product.

and

Statement 2: In bromobenzene, the inductive effect of the bromo group is more dominant than the mesomeric effect in directing the incoming electrophile.

A

Statement 1 is True, Statement 2 is True; Statement 2 is a correct explanation for Statement 1.

B

Statement 1 is True, Statement 2 is True; Statement 2 is a NOT correct explanation for Statement 1.

C

Statement 1 is True, Statement 2 is False.

D

Statement 1 is False, Statement 2 is True.