NTA Abhyas NEET2020ChemistryCarboxylic Acid DerivativesPractice
Which oxide of carbon is formed when malonic acid is warmed with P 2 O 5
Options
- AMixture of C O 2 and CO
- BC 3 O 2
- CC 3 O 4
- DOnly C O 2
Correct answer
B. C 3 O 2
Step-by-step solution
when malonic acid is warmed with P 2 O 5 carbon suboxide is formed C H 2 COOH 2 → P 2 O 5 C 3 O 2 + H 2 O C a r b o n s u b o x i d e