The formula C6H5-CO-CH3 represents_______ ?
Correct answer: C. Acetophenone
- A. Acetone
- B. Acetic acid
- C. Acetophenone
- D. Phenyl acetate
Explanation
The structure C6H5-CO-CH3 has a carbonyl group bonded to a phenyl group and a methyl group, so it is acetophenone, an aromatic ketone. Students may choose acetone because it also contains a ketone group, but acetone is CH3COCH3 and has no phenyl group.
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About Reactivity of Aldehydes and Ketones
The polar carbonyl group makes aldehydes and ketones undergo nucleophilic addition, reduction and condensation reactions. Aldehydes are generally more reactive and oxidise readily to carboxylic acids, whereas ketones resist mild oxidation; reactions with hydrogen cyanide, sodium bisulfite and 2,4-DNP help identify their behaviour.
Practise Aldehydes and Ketones
679 free Aldehydes and Ketones MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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