Sigma Percentile

Types of Organic Reactions

Interactive Feed
JEE Advanced 2021
LEVELJEE Advanced

The reaction sequence(s) that would lead to o-xylene as the major product is (are) [JEE(Advanced) 2021]

* Multiple Correct Options
(A)
(B)
(C)
(D)
JEE Advanced 2014
LEVELJEE Advanced

Different possible thermal decomposition pathways for peroxyesters are shown below. Match each pathway from List-I with an appropriate structure from List-II.

List-I

(P)
Pathway P
(Q)
Pathway Q
(R)
Pathway R
(S)
Pathway S

List-II

(1)
(2)
(3)
(4)
JEE Advanced 2023
LEVELJEE Advanced

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in List-I. Match List-I with List-II and choose the correct option.

List-I

(P)
Etard reaction
(Q)
Gattermann reaction
(R)
Gattermann-Koch reaction
(S)
Rosenmund reduction

List-II

(1)
Acetophenone
(2)
Toluene
(3)
Benzene
(4)
Aniline
(5)
Phenol
JEE Advanced 2020
LEVELJEE Advanced

In the following reaction, compound Q is obtained from compound P via an ionic intermediate What is the degree of unsaturation of Q ?

JEE Main 2020
LEVELJEE Advanced

The major products A and B in the following reactions are :

(A)
(B)
(C)
(D)
JEE Main 2019
LEVELJEE Main

The increasing order of nucleophilicity of the following nucleophiles is (1) (2) (3) (4)

(A)
(1) < (4) < (3) < (2)
(B)
(2) < (3) < (1) < (4)
(C)
(4) < (1) < (3) < (2)
(D)
(2) < (3) < (4) < (1)
LEVELJEE Main

The decreasing order of the rate of the above reaction with nucleophile () A and D is

(A)
D > C > A > B
(B)
D > C > B > A
(C)
A > B > C > D
(D)
B > D > C > A
LEVELJEE Advanced

The decreasing order of nucleophilicity among the nucleophiles

(A)
(C), (B), (A), (D)
(B)
(B), (C), (A), (D)
(C)
(D), (C), (B), (A)
(D)
(A), (B), (C), (D)
JEE Main 2019
LEVELJEE Main

Which of the following potential energy (PE) diagrams represents the reaction?

(A)
(B)
(C)
(D)
JEE Main 2020
LEVELJEE Main

The major product of the following reaction is

(A)
(B)
(C)
(D)
JEE Main 2005
LEVELJEE Main

The reaction is fastest when is

(A)
(B)
(C)
(D)
JEE Main 2020
LEVELJEE Advanced

The decreasing order of reactivity towards dehydrohalogenation () reaction of the following compounds is :

(A)
B > A > D > C
(B)
B > D > A > C
(C)
D > B > C > A
(D)
B > D > C > A
LEVELJEE Main

reaction is feasible in

(A)
(B)
(C)
(D)
JEE Main 2021
LEVELJEE Main

The correct order of their reactivity towards hydrolysis at room temperature is

(A)
(A) > (B) > (C) > (D)
(B)
(D) > (A) > (B) > (C)
(C)
(D) > (B) > (A) > (C)
(D)
(A) > (C) > (B) > (D)
LEVELBoard

Following reaction, is an example of

(A)
elimination reaction
(B)
free radical substitution
(C)
nucleophilic substitution
(D)
electrophilic substitution
JEE Main 2020
LEVELJEE Advanced

The decreasing order of reactivity of the following organic molecules towards solution is

(A)
(A) > (B) > (C) > (D)
(B)
(C) > (D) > (A) > (B)
(C)
(B) > (A) > (C) > (D)
(D)
(A) > (B) > (D) > (C)
JEE Main 2019
LEVELJEE Advanced

Increasing rate of reaction in the following compounds is

(A)
(A) < (B) < (C) < (D)
(B)
(B) < (A) < (C) < (D)
(C)
(A) < (B) < (D) < (C)
(D)
(B) < (A) < (D) < (C)
JEE Main 2020
LEVELJEE Advanced

The number of chiral centres present in [B] is ............. .