The minimum number of carbon atoms in ketones which will show chain isomerism is:
A
seven
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B
four
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C
six
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D
five
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Solution
The correct option is D five The minimum number of carbon atoms in ketones which will show chain isomerism is five. For example, CH3−CO−CH2−CH2−CH3 and CH3−CH(CH3)−CO−CH3 shows chain isomerism.