Molecular weight of the compound = \(2 \times \text { Vapor density }=2 \times 29=58\) Molecular weight of \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}, \mathrm{CH}_{3} \mathrm{CHOHCH}_{3}, \quad \mathrm{CH}_{3} \mathrm{COCH}_{3}\), and \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}\) are 58, 60, 58 and 74, respectively. Both \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) have molecular weight 58, but only \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) on warming with aqueous alkali gives yellow precipitate.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323683
Which of the following reagent is used to distinguish acetone and acetophenone?
1 \(\mathrm{NaHSO}_{3}\)
2 Grignard reagent
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{NH}_{4} \mathrm{Cl}\)
Explanation:
Acetone forms sodium bisulphate adduct but acetophenone does not. Aromatic ketones due to steric hindrance do not give addition product with \(\mathrm{NaHSO}_{3}\).
Molecular weight of the compound = \(2 \times \text { Vapor density }=2 \times 29=58\) Molecular weight of \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}, \mathrm{CH}_{3} \mathrm{CHOHCH}_{3}, \quad \mathrm{CH}_{3} \mathrm{COCH}_{3}\), and \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}\) are 58, 60, 58 and 74, respectively. Both \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) have molecular weight 58, but only \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) on warming with aqueous alkali gives yellow precipitate.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323683
Which of the following reagent is used to distinguish acetone and acetophenone?
1 \(\mathrm{NaHSO}_{3}\)
2 Grignard reagent
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{NH}_{4} \mathrm{Cl}\)
Explanation:
Acetone forms sodium bisulphate adduct but acetophenone does not. Aromatic ketones due to steric hindrance do not give addition product with \(\mathrm{NaHSO}_{3}\).
Molecular weight of the compound = \(2 \times \text { Vapor density }=2 \times 29=58\) Molecular weight of \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}, \mathrm{CH}_{3} \mathrm{CHOHCH}_{3}, \quad \mathrm{CH}_{3} \mathrm{COCH}_{3}\), and \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}\) are 58, 60, 58 and 74, respectively. Both \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) have molecular weight 58, but only \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) on warming with aqueous alkali gives yellow precipitate.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323683
Which of the following reagent is used to distinguish acetone and acetophenone?
1 \(\mathrm{NaHSO}_{3}\)
2 Grignard reagent
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{NH}_{4} \mathrm{Cl}\)
Explanation:
Acetone forms sodium bisulphate adduct but acetophenone does not. Aromatic ketones due to steric hindrance do not give addition product with \(\mathrm{NaHSO}_{3}\).
Molecular weight of the compound = \(2 \times \text { Vapor density }=2 \times 29=58\) Molecular weight of \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}, \mathrm{CH}_{3} \mathrm{CHOHCH}_{3}, \quad \mathrm{CH}_{3} \mathrm{COCH}_{3}\), and \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}\) are 58, 60, 58 and 74, respectively. Both \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHO}\) and \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) have molecular weight 58, but only \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\) on warming with aqueous alkali gives yellow precipitate.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323683
Which of the following reagent is used to distinguish acetone and acetophenone?
1 \(\mathrm{NaHSO}_{3}\)
2 Grignard reagent
3 \(\mathrm{Na}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{NH}_{4} \mathrm{Cl}\)
Explanation:
Acetone forms sodium bisulphate adduct but acetophenone does not. Aromatic ketones due to steric hindrance do not give addition product with \(\mathrm{NaHSO}_{3}\).
