5
Question
Which of the following compounds gives a ketone when its vapours are passed over heated copper at 573K?
Which of the following compounds gives a ketone when its vapours are passed over heated copper at 573K?
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Solution
The correct option is B Propan-2-ol
Secondary alcohols undergo dehydrogenation when its vapours are passed over Cu at 573K to give ketone. Primary and tertiary alcohols under the same conditions give aldehydes and alkenes respectively. Thus propan-2-ol give ketone because it ia secondary alcohol.
Secondary alcohols undergo dehydrogenation when its vapours are passed over Cu at 573K to give ketone. Primary and tertiary alcohols under the same conditions give aldehydes and alkenes respectively. Thus propan-2-ol give ketone because it ia secondary alcohol.
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