Which oxide of carbon is formed when malonic acid is warmed with P 2 O 5

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Question: Answered & Verified by Expert

Which oxide of carbon is formed when malonic acid is warmed with

P_{2} O_{5}

ChemistryCarboxylic Acid DerivativesNEET

Options:

A Mixture of $C O_{2}$ and CO
B $C_{3} O_{2}$
C $C_{3} O_{4}$
D Only $C O_{2}$

Solution:

1947 Upvotes Verified Answer

The correct answer is:

C_{3} O_{2}

when malonic acid is warmed with

P_{2} O_{5}

carbon suboxide is formed

C H_{2} {(COOH)}_{2} \overset{P_{2} O_{5}}{\to} \underset{C a r b o n s u b o x i d e}{C_{3} O_{2} + H_{2} O}

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