JEE Main201912 Jan 2019Evening ShiftChemistryCarboxylic Acid DerivativesActual
The increasing order of the reactivity of the following with L i A l H 4 is: ( A ) ( B ) ( C ) ( D )
Options
- AB < A < D < C
- BA < B < C < D
- CA < B < D < C
- DB < A < C < D
Correct answer
C. A < B < D < C
Step-by-step solution
In the mentioned structures H - will get added to the carbon having slight positive charge. Presence of C l increases the positive charge whereas an electron donating group like N H 2 decreases the tendency. Rate of reaction ∝ - M or - I group Rate of reaction ∝ 1 + M and 1 + I Hence, the correct order will be: