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  4. A carbonyl compound P, which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/370e4615a27d1313acbbf063e3578aac-.png /> The structure of the carbonyl compound P, is

Q. A carbonyl compound , which gives positive iodoform test, undergoes reaction with followed by dehydration to give an olefin . Ozonolysis of leads to a dicarbonyl compound , which undergoes intramolecular aldol reaction to give predominantly .
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The structure of the carbonyl compound , is

 2156  185 Aldehydes Ketones and Carboxylic Acids Report Error

Solution:

Correct answer is (b)

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