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JEE Main Chemistry question

ChemistryAldehydes, Ketones and Carboxylic AcidsJEE Main

Benzene reacts with dry HCN and HCl in the presence of anhydrous AlCl₃, followed by hydrolysis, to form

Answer: (C)

Solution

This is a Gattermann-type formylation: the HCN/HCl/AlCl₃ combination generates an electrophilic iminium-type species

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Question ID VK-140368