Chemical Reactions of Aldehydes and Ketones
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323628 \(3 \mathrm{HCHO} \rightarrow \mathrm{X}\). \(\mathrm{X}\) is

1 Formalin
2 Paraformaldehyde
3 Paraldehyde
4 Metaformaldehyde
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323629 During reduction of aldehyde with \(\mathrm{NH}_{2} \mathrm{NH}_{2}, \mathrm{OH}^{-}\) and glycol, the first intermediate compound formed as

1 \(\mathrm{CH}_{3} \mathrm{CN}\)
2 \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NNH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323630 Examine the structural formulas given below and identify number of compounds which are reduced by \(\mathrm{NaBH}_{4}\).
supporting img

1 4
2 5
3 9
4 6
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323631 Identify the product formed in the following reaction.
\({\text{C}}{{\text{H}}_3} - {\text{CH}} = {\text{CH}} - {\text{C}}{{\text{H}}_2} - {\text{CHO}}\xrightarrow[{{\text{i}}{{\text{i}}_{\text{3}}}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{ + }}}}]{{{\text{ (i) LiAl}}{{\text{H}}_{\text{4}}}}}{\text{Products}}\)

1 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
2 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
3 \(\mathrm{CH}_{3}-\left(\mathrm{CH}_{2}\right)_{3}-\mathrm{CH}_{2}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323632 In Clemmensen reduction carbonyl compound is treated with

1 Zinc amalgam \(+\mathrm{HCl}\)
2 Sodium amalgam
3 Zinc amalgam + nitric acid
4 Sodium amalgam \(+\mathrm{HNO}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323628 \(3 \mathrm{HCHO} \rightarrow \mathrm{X}\). \(\mathrm{X}\) is

1 Formalin
2 Paraformaldehyde
3 Paraldehyde
4 Metaformaldehyde
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323629 During reduction of aldehyde with \(\mathrm{NH}_{2} \mathrm{NH}_{2}, \mathrm{OH}^{-}\) and glycol, the first intermediate compound formed as

1 \(\mathrm{CH}_{3} \mathrm{CN}\)
2 \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NNH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323630 Examine the structural formulas given below and identify number of compounds which are reduced by \(\mathrm{NaBH}_{4}\).
supporting img

1 4
2 5
3 9
4 6
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323631 Identify the product formed in the following reaction.
\({\text{C}}{{\text{H}}_3} - {\text{CH}} = {\text{CH}} - {\text{C}}{{\text{H}}_2} - {\text{CHO}}\xrightarrow[{{\text{i}}{{\text{i}}_{\text{3}}}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{ + }}}}]{{{\text{ (i) LiAl}}{{\text{H}}_{\text{4}}}}}{\text{Products}}\)

1 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
2 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
3 \(\mathrm{CH}_{3}-\left(\mathrm{CH}_{2}\right)_{3}-\mathrm{CH}_{2}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323632 In Clemmensen reduction carbonyl compound is treated with

1 Zinc amalgam \(+\mathrm{HCl}\)
2 Sodium amalgam
3 Zinc amalgam + nitric acid
4 Sodium amalgam \(+\mathrm{HNO}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323628 \(3 \mathrm{HCHO} \rightarrow \mathrm{X}\). \(\mathrm{X}\) is

1 Formalin
2 Paraformaldehyde
3 Paraldehyde
4 Metaformaldehyde
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323629 During reduction of aldehyde with \(\mathrm{NH}_{2} \mathrm{NH}_{2}, \mathrm{OH}^{-}\) and glycol, the first intermediate compound formed as

1 \(\mathrm{CH}_{3} \mathrm{CN}\)
2 \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NNH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323630 Examine the structural formulas given below and identify number of compounds which are reduced by \(\mathrm{NaBH}_{4}\).
supporting img

1 4
2 5
3 9
4 6
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323631 Identify the product formed in the following reaction.
\({\text{C}}{{\text{H}}_3} - {\text{CH}} = {\text{CH}} - {\text{C}}{{\text{H}}_2} - {\text{CHO}}\xrightarrow[{{\text{i}}{{\text{i}}_{\text{3}}}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{ + }}}}]{{{\text{ (i) LiAl}}{{\text{H}}_{\text{4}}}}}{\text{Products}}\)

1 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
2 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
3 \(\mathrm{CH}_{3}-\left(\mathrm{CH}_{2}\right)_{3}-\mathrm{CH}_{2}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323632 In Clemmensen reduction carbonyl compound is treated with

1 Zinc amalgam \(+\mathrm{HCl}\)
2 Sodium amalgam
3 Zinc amalgam + nitric acid
4 Sodium amalgam \(+\mathrm{HNO}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323628 \(3 \mathrm{HCHO} \rightarrow \mathrm{X}\). \(\mathrm{X}\) is

1 Formalin
2 Paraformaldehyde
3 Paraldehyde
4 Metaformaldehyde
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323629 During reduction of aldehyde with \(\mathrm{NH}_{2} \mathrm{NH}_{2}, \mathrm{OH}^{-}\) and glycol, the first intermediate compound formed as

1 \(\mathrm{CH}_{3} \mathrm{CN}\)
2 \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NNH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323630 Examine the structural formulas given below and identify number of compounds which are reduced by \(\mathrm{NaBH}_{4}\).
supporting img

1 4
2 5
3 9
4 6
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323631 Identify the product formed in the following reaction.
\({\text{C}}{{\text{H}}_3} - {\text{CH}} = {\text{CH}} - {\text{C}}{{\text{H}}_2} - {\text{CHO}}\xrightarrow[{{\text{i}}{{\text{i}}_{\text{3}}}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{ + }}}}]{{{\text{ (i) LiAl}}{{\text{H}}_{\text{4}}}}}{\text{Products}}\)

1 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
2 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
3 \(\mathrm{CH}_{3}-\left(\mathrm{CH}_{2}\right)_{3}-\mathrm{CH}_{2}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323632 In Clemmensen reduction carbonyl compound is treated with

1 Zinc amalgam \(+\mathrm{HCl}\)
2 Sodium amalgam
3 Zinc amalgam + nitric acid
4 Sodium amalgam \(+\mathrm{HNO}_{3}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323628 \(3 \mathrm{HCHO} \rightarrow \mathrm{X}\). \(\mathrm{X}\) is

1 Formalin
2 Paraformaldehyde
3 Paraldehyde
4 Metaformaldehyde
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323629 During reduction of aldehyde with \(\mathrm{NH}_{2} \mathrm{NH}_{2}, \mathrm{OH}^{-}\) and glycol, the first intermediate compound formed as

1 \(\mathrm{CH}_{3} \mathrm{CN}\)
2 \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{NNH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323630 Examine the structural formulas given below and identify number of compounds which are reduced by \(\mathrm{NaBH}_{4}\).
supporting img

1 4
2 5
3 9
4 6
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323631 Identify the product formed in the following reaction.
\({\text{C}}{{\text{H}}_3} - {\text{CH}} = {\text{CH}} - {\text{C}}{{\text{H}}_2} - {\text{CHO}}\xrightarrow[{{\text{i}}{{\text{i}}_{\text{3}}}{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{ + }}}}]{{{\text{ (i) LiAl}}{{\text{H}}_{\text{4}}}}}{\text{Products}}\)

1 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
2 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{OH}\)
3 \(\mathrm{CH}_{3}-\left(\mathrm{CH}_{2}\right)_{3}-\mathrm{CH}_{2}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323632 In Clemmensen reduction carbonyl compound is treated with

1 Zinc amalgam \(+\mathrm{HCl}\)
2 Sodium amalgam
3 Zinc amalgam + nitric acid
4 Sodium amalgam \(+\mathrm{HNO}_{3}\)