1

JEE Main 2019 (Online) 11th January Morning Slot

The major product of the following reaction is :

A
B
C
D

Explanation

2

JEE Main 2019 (Online) 11th January Morning Slot

The major product of the following reaction is

A
B
C
D

Explanation

3

JEE Main 2019 (Online) 11th January Evening Slot

The major product obtained in the following reaction is :

A
B
C
D

Explanation

In LiAlH4, H- is the attacking species which is a strong nucleophile and performs both nucleophilc substitution and nucleophilic addition reaction. In C = C, pi bond is created by pure p orbital with side by side overlapping which create $\pi$ cloud and $\pi$ cloud creates negative charge around it. As H- is also negative charged so LiAlH4 can't reduce C = C.
4

JEE Main 2019 (Online) 11th January Evening Slot

The major product obtained in the following conversion is
A
B
C
D