question_answer

Which of the following diacid readily gives anhydride on heating?

A)  Fumaric                              

B)  Maleic acid    

C)  Malic acid          

D)  Terephthalic acid

Correct Answer: B

Solution :

                 C is-dioic m acid readily gives anhydride on heating. Since maleic acid is a dioic acid, it gives maleic anhydride readily