Aldehydes Ketones And Carboxylic Acid 01 Ques2
Question: Which of the following has the carbonyl group at the end of the carbon chain?
Options:
A) Acetone
B) Propanal
C) 3-Pentanone
D) 4-Methyl-2-pentanone
Show Answer
Answer: b
Explanation:
A) Acetone has the carbonyl group on the second carbon ($CH_3COCH_3$).
B) Correct. Propanal has the carbonyl group at the end of the carbon chain ($CH_3CH_2CHO$).
C) 3-Pentanone has the carbonyl group on the third carbon ($CH_3CH_2COCH_2CH_3$).
D) 4-Methyl-2-pentanone has the carbonyl group not at the end of the carbon chain ($CH_3CH_2COCH_2CH_3$).