JEE Main20209 Jan 2020Morning ShiftChemistryAldehydes and KetonesActual

Identify A in the following reaction sequence:

Correct answer

Step-by-step solution

Ozonolysis with O 3 converts alkenes into carbonyl compounds. Alcohol upon reaction with protic acids tends to lose a molecule of water to form alkenes. These reactions are known as dehydrogenation or dehydration of alcohols. It is an example of an elimination reaction.The order of the ease of dehydration of alcohols is: tertiary > secondary > primary.

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