NTA Abhyas JEE Main2020ChemistryCarboxylic Acid DerivativesPractice
The correct order of acidic strength of the following is (I) Oxalic acid H O O C - C O O H (II) Malonic acid H O O C - C H 2 - C O O H (III) Succinic acid H O O C - C H 2 2 - C O O H (IV) Glutaric acid H O O C - C H 2 3 - C O O H
Options
- AI > II > III > IV
- BI > III> II > IV
- CIV> III > II > I
- DIV> II > III > I
Correct answer
A. I > II > III > IV
Step-by-step solution
Acidic strength of dicarboxylic acid is based on the +I effect of alkyl group. As +I increases acidic nature decreases. Compounds with formula H O O C - C H 2 n - C O O H are called dicarboxylic acid. Acidic strength order is: Oxalic acid > Malonic acid > Succinic acid > Glutaric acid