Assertion :Malonic acid $(H O O C - C H_{2} - C O O H)$ does not form cyclic anhydride on heating. Reason: It is like $β$ - keto acid, on heating it prefer to decarboxylate.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$β -$ keto acids decarboxylate very easily the reaction is promoted by tautomerism and mesomerism. Malonic acid is a $β$ - keto acid so it prefers to decarboxylate forming acetic acid

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