323688
Aldehydes and ketones can be distinguished by
1 Ammonia
2 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Alkaline \(\mathrm{KMnO}_{4}\)
4 Fehling solution
Explanation:
Aldehydes and ketones can be distinguished by Fehling's reagent [alkaline solution of \(\mathrm{CuSO}_{4}\) containing Rochelle salt (sodium potassium tartarate), mild oxidising agent]. \({\text{Aldehydes }}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{Red - brown}}{\mkern 1mu} {\mkern 1mu} {\text{ppt}}\) \({\text{Ketones}}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{ No}}{\mkern 1mu} {\mkern 1mu} {\text{reaction}}\)
AIIMS - 2013
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323689
The product of acid hydrolysis of \({\rm{P}}\) and \({\rm{Q}}\) can be distinguished by
1 Lucas reagent
2 2, 4-DNP
3 Fehling's solution
4 \(\mathrm{NaHSO}_{3}\)
Explanation:
Aldehyde and Ketones can be distinguished by Fehling's solution.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323690
Which of the following pairs gives positive Tollens' test?
1 Glucose, sucrose
2 Glucose, fructose
3 Hexanal, acetophenone
4 Fructose, sucrose
Explanation:
Aldehydes and \({\rm{\alpha }} - \) hydroxyketones give positive Tollens' test. Glucose is a polyhydroxy aldehyde and fructose is an \({\rm{\alpha }} - \) hydroxyketone.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323691
Fehling's solution ' \({\mathrm{A}}\) ' is
1 aqueous copper sulphate
2 alkaline copper sulphate
3 alkaline solution of sodium potassium tartrate(Rochelle's salt)
323688
Aldehydes and ketones can be distinguished by
1 Ammonia
2 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Alkaline \(\mathrm{KMnO}_{4}\)
4 Fehling solution
Explanation:
Aldehydes and ketones can be distinguished by Fehling's reagent [alkaline solution of \(\mathrm{CuSO}_{4}\) containing Rochelle salt (sodium potassium tartarate), mild oxidising agent]. \({\text{Aldehydes }}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{Red - brown}}{\mkern 1mu} {\mkern 1mu} {\text{ppt}}\) \({\text{Ketones}}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{ No}}{\mkern 1mu} {\mkern 1mu} {\text{reaction}}\)
AIIMS - 2013
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323689
The product of acid hydrolysis of \({\rm{P}}\) and \({\rm{Q}}\) can be distinguished by
1 Lucas reagent
2 2, 4-DNP
3 Fehling's solution
4 \(\mathrm{NaHSO}_{3}\)
Explanation:
Aldehyde and Ketones can be distinguished by Fehling's solution.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323690
Which of the following pairs gives positive Tollens' test?
1 Glucose, sucrose
2 Glucose, fructose
3 Hexanal, acetophenone
4 Fructose, sucrose
Explanation:
Aldehydes and \({\rm{\alpha }} - \) hydroxyketones give positive Tollens' test. Glucose is a polyhydroxy aldehyde and fructose is an \({\rm{\alpha }} - \) hydroxyketone.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323691
Fehling's solution ' \({\mathrm{A}}\) ' is
1 aqueous copper sulphate
2 alkaline copper sulphate
3 alkaline solution of sodium potassium tartrate(Rochelle's salt)
323688
Aldehydes and ketones can be distinguished by
1 Ammonia
2 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Alkaline \(\mathrm{KMnO}_{4}\)
4 Fehling solution
Explanation:
Aldehydes and ketones can be distinguished by Fehling's reagent [alkaline solution of \(\mathrm{CuSO}_{4}\) containing Rochelle salt (sodium potassium tartarate), mild oxidising agent]. \({\text{Aldehydes }}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{Red - brown}}{\mkern 1mu} {\mkern 1mu} {\text{ppt}}\) \({\text{Ketones}}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{ No}}{\mkern 1mu} {\mkern 1mu} {\text{reaction}}\)
AIIMS - 2013
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323689
The product of acid hydrolysis of \({\rm{P}}\) and \({\rm{Q}}\) can be distinguished by
1 Lucas reagent
2 2, 4-DNP
3 Fehling's solution
4 \(\mathrm{NaHSO}_{3}\)
Explanation:
Aldehyde and Ketones can be distinguished by Fehling's solution.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323690
Which of the following pairs gives positive Tollens' test?
1 Glucose, sucrose
2 Glucose, fructose
3 Hexanal, acetophenone
4 Fructose, sucrose
Explanation:
Aldehydes and \({\rm{\alpha }} - \) hydroxyketones give positive Tollens' test. Glucose is a polyhydroxy aldehyde and fructose is an \({\rm{\alpha }} - \) hydroxyketone.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323691
Fehling's solution ' \({\mathrm{A}}\) ' is
1 aqueous copper sulphate
2 alkaline copper sulphate
3 alkaline solution of sodium potassium tartrate(Rochelle's salt)
323688
Aldehydes and ketones can be distinguished by
1 Ammonia
2 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
3 Alkaline \(\mathrm{KMnO}_{4}\)
4 Fehling solution
Explanation:
Aldehydes and ketones can be distinguished by Fehling's reagent [alkaline solution of \(\mathrm{CuSO}_{4}\) containing Rochelle salt (sodium potassium tartarate), mild oxidising agent]. \({\text{Aldehydes }}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{Red - brown}}{\mkern 1mu} {\mkern 1mu} {\text{ppt}}\) \({\text{Ketones}}\xrightarrow{{{\text{ Fehling reagent }}}}{\text{ No}}{\mkern 1mu} {\mkern 1mu} {\text{reaction}}\)
AIIMS - 2013
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323689
The product of acid hydrolysis of \({\rm{P}}\) and \({\rm{Q}}\) can be distinguished by
1 Lucas reagent
2 2, 4-DNP
3 Fehling's solution
4 \(\mathrm{NaHSO}_{3}\)
Explanation:
Aldehyde and Ketones can be distinguished by Fehling's solution.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323690
Which of the following pairs gives positive Tollens' test?
1 Glucose, sucrose
2 Glucose, fructose
3 Hexanal, acetophenone
4 Fructose, sucrose
Explanation:
Aldehydes and \({\rm{\alpha }} - \) hydroxyketones give positive Tollens' test. Glucose is a polyhydroxy aldehyde and fructose is an \({\rm{\alpha }} - \) hydroxyketone.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323691
Fehling's solution ' \({\mathrm{A}}\) ' is
1 aqueous copper sulphate
2 alkaline copper sulphate
3 alkaline solution of sodium potassium tartrate(Rochelle's salt)
