NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323637
Which of the following conversions can be carried out by Clemmensen Reduction? (i) Benzaldehyde into benzyl alcohol (ii) Cyclohexanone into cyclohexane (iii) Benzoyl chloride into benzadehyde (iv) Benzophenone into diphenyl methane
1 (ii) and (iv)
2 (i) and (iv)
3 (i) and (iii)
4 (iii) and (iv)
Explanation:
Carbonyl compound into alkane
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323638
The reagent used in Clemmensen reduction is
\(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\) (conc.) is used in Clemmensen reduction. It is used for the reduction of carbonyl compound to alkane.
KCET - 2007
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323639
In the conversion of X is
1 \(\mathrm{H}_{2} / \mathrm{Pt}\)
2 \(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\)
3 \(\mathrm{Li} / \mathrm{NH}_{3}\)
4 \(\mathrm{NaBH}_{4}\)
Explanation:
\(\mathrm{NaBH}_{4}\) does not reduce olefin (alkene) double bond, it only reduces \(\mathrm{C}=\mathrm{O}\) group. Thus, the reagent \((\mathrm{X})\) is \(\mathrm{NaBH}_{4}\).
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323640
Reduction of ketones cannot be carried out with which of the following reagents?
1 Hydrogen in presence of palladium in barium sulphate and quinoline
2 Sodium borohydride or lithium aluminium hydride
3 Zinc amalgam and concentrated \(\mathrm{HCl}\)
4 Hydrazine and \(\mathrm{KOH}\) in ethylene glycol
Explanation:
Reduction of ketones cannot be carried out with hydrogen in Pd in presence of barium sulphate and quinoline.
323637
Which of the following conversions can be carried out by Clemmensen Reduction? (i) Benzaldehyde into benzyl alcohol (ii) Cyclohexanone into cyclohexane (iii) Benzoyl chloride into benzadehyde (iv) Benzophenone into diphenyl methane
1 (ii) and (iv)
2 (i) and (iv)
3 (i) and (iii)
4 (iii) and (iv)
Explanation:
Carbonyl compound into alkane
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323638
The reagent used in Clemmensen reduction is
\(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\) (conc.) is used in Clemmensen reduction. It is used for the reduction of carbonyl compound to alkane.
KCET - 2007
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323639
In the conversion of X is
1 \(\mathrm{H}_{2} / \mathrm{Pt}\)
2 \(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\)
3 \(\mathrm{Li} / \mathrm{NH}_{3}\)
4 \(\mathrm{NaBH}_{4}\)
Explanation:
\(\mathrm{NaBH}_{4}\) does not reduce olefin (alkene) double bond, it only reduces \(\mathrm{C}=\mathrm{O}\) group. Thus, the reagent \((\mathrm{X})\) is \(\mathrm{NaBH}_{4}\).
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323640
Reduction of ketones cannot be carried out with which of the following reagents?
1 Hydrogen in presence of palladium in barium sulphate and quinoline
2 Sodium borohydride or lithium aluminium hydride
3 Zinc amalgam and concentrated \(\mathrm{HCl}\)
4 Hydrazine and \(\mathrm{KOH}\) in ethylene glycol
Explanation:
Reduction of ketones cannot be carried out with hydrogen in Pd in presence of barium sulphate and quinoline.
323637
Which of the following conversions can be carried out by Clemmensen Reduction? (i) Benzaldehyde into benzyl alcohol (ii) Cyclohexanone into cyclohexane (iii) Benzoyl chloride into benzadehyde (iv) Benzophenone into diphenyl methane
1 (ii) and (iv)
2 (i) and (iv)
3 (i) and (iii)
4 (iii) and (iv)
Explanation:
Carbonyl compound into alkane
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323638
The reagent used in Clemmensen reduction is
\(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\) (conc.) is used in Clemmensen reduction. It is used for the reduction of carbonyl compound to alkane.
KCET - 2007
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323639
In the conversion of X is
1 \(\mathrm{H}_{2} / \mathrm{Pt}\)
2 \(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\)
3 \(\mathrm{Li} / \mathrm{NH}_{3}\)
4 \(\mathrm{NaBH}_{4}\)
Explanation:
\(\mathrm{NaBH}_{4}\) does not reduce olefin (alkene) double bond, it only reduces \(\mathrm{C}=\mathrm{O}\) group. Thus, the reagent \((\mathrm{X})\) is \(\mathrm{NaBH}_{4}\).
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323640
Reduction of ketones cannot be carried out with which of the following reagents?
1 Hydrogen in presence of palladium in barium sulphate and quinoline
2 Sodium borohydride or lithium aluminium hydride
3 Zinc amalgam and concentrated \(\mathrm{HCl}\)
4 Hydrazine and \(\mathrm{KOH}\) in ethylene glycol
Explanation:
Reduction of ketones cannot be carried out with hydrogen in Pd in presence of barium sulphate and quinoline.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323637
Which of the following conversions can be carried out by Clemmensen Reduction? (i) Benzaldehyde into benzyl alcohol (ii) Cyclohexanone into cyclohexane (iii) Benzoyl chloride into benzadehyde (iv) Benzophenone into diphenyl methane
1 (ii) and (iv)
2 (i) and (iv)
3 (i) and (iii)
4 (iii) and (iv)
Explanation:
Carbonyl compound into alkane
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323638
The reagent used in Clemmensen reduction is
\(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\) (conc.) is used in Clemmensen reduction. It is used for the reduction of carbonyl compound to alkane.
KCET - 2007
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323639
In the conversion of X is
1 \(\mathrm{H}_{2} / \mathrm{Pt}\)
2 \(\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\)
3 \(\mathrm{Li} / \mathrm{NH}_{3}\)
4 \(\mathrm{NaBH}_{4}\)
Explanation:
\(\mathrm{NaBH}_{4}\) does not reduce olefin (alkene) double bond, it only reduces \(\mathrm{C}=\mathrm{O}\) group. Thus, the reagent \((\mathrm{X})\) is \(\mathrm{NaBH}_{4}\).
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323640
Reduction of ketones cannot be carried out with which of the following reagents?
1 Hydrogen in presence of palladium in barium sulphate and quinoline
2 Sodium borohydride or lithium aluminium hydride
3 Zinc amalgam and concentrated \(\mathrm{HCl}\)
4 Hydrazine and \(\mathrm{KOH}\) in ethylene glycol
Explanation:
Reduction of ketones cannot be carried out with hydrogen in Pd in presence of barium sulphate and quinoline.
