1.

Which of the following compounds will not form an anhydride ?

Answer»

Propandioic ACID
Succine acid
Hexandioic acid
cis-But-2-en-1, 4-dioic acid

Solution :Propandioic acid will not form an anhydride as it does not form FIVE or six membered ring
`HOOC - CH_(2) - COOH underset(-2H_(2)O)rarr underset("CARBON suboxide")(O = C = C = C = O)`


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