Question:
Identify the pair of ketone having both members as mixed ketones.
Identify the pair of ketone having both members as mixed ketones.
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A mixed ketone has two different groups on the carbonyl carbon.
Updated On: Nov 12, 2026
- Benzophenone, acetone
- Butanone, acetophenone
- Butanone, acetone
- Benzophenone, acetophenone
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
A mixed (unsymmetrical) ketone has two different groups attached to the carbonyl group.
Step 2: Check each ketone
Butanone: \(\text{CH}_{3}\text{COC}_{2}\text{H}_{5}\), mixed.
Acetophenone: \(\text{C}_{6}\text{H}_{5}\text{COCH}_{3}\), mixed.
Acetone and benzophenone have identical groups, so they are simple ketones.
Step 3: Conclusion
Both members of the pair are mixed ketones only in butanone with acetophenone.
Final Answer:
Butanone and acetophenone are both mixed ketones. \[ \boxed{\text{(B) }\text{Butanone, acetophenone}} \]
A mixed (unsymmetrical) ketone has two different groups attached to the carbonyl group.
Step 2: Check each ketone
Butanone: \(\text{CH}_{3}\text{COC}_{2}\text{H}_{5}\), mixed.
Acetophenone: \(\text{C}_{6}\text{H}_{5}\text{COCH}_{3}\), mixed.
Acetone and benzophenone have identical groups, so they are simple ketones.
Step 3: Conclusion
Both members of the pair are mixed ketones only in butanone with acetophenone.
Final Answer:
Butanone and acetophenone are both mixed ketones. \[ \boxed{\text{(B) }\text{Butanone, acetophenone}} \]
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