Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.…

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Order of acidic nature of the following compounds is  A > B > C.

Reason R: Fluoro is a stronger electron withdrawing group than Chloro group.

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

 

  1. A is false but R is true
  2. Both A and R are correct and R is the correct explanation of A
  3. A is true but R is false
  4. Both A and R are correct but R is NOT the correct explanation of A

Solution

The electron withdrawing groups decreases the acidic nature and The electron releasing groups increases the acidic nature.

The F & Cl are electron withdrawing while CH3 is electron loosing hence acidic strength will be

On further differentiation the– I effect depends on most importantly over distance hence.

The F has higher –I effect as compared to Cl hence reason is correct statement but the –I effect depends more on distance as compared to power hence  is stronger acid than  

Asked in: JEE Main 2023 (13 Apr Shift 2)

Practice more General Organic Chemistry questions on Aicharya