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Acetone reacts with ethylene glycol in dry HCl gas to form _________

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Acetone reacts with ethylene glycol in dry HCl gas to form _________

(a) hemiacetals

(b) acetals

(c) cyclic acetals

(d) cyclic ketals

I got this question during an online exam.

My enquiry is from Aldehydes and Ketones Chemical Reactions in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Right answer is (d) cyclic ketals

For explanation I would say: Dihydric alcohols like ethylene glycol react with aldehydes and ketones to directly form cyclic products known as cyclic acetals and cyclic ketals respectively. The cyclic ketals are also known as ethylene glycol ketals.

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