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

323624 What are the correct steps to convert acetaldehyde into acetone?

1 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}_{2} \mathrm{O}\), oxidation by
\(\mathrm{KMnO}_{4} / \mathrm{H}^{+}, \Delta\)
2 Oxidation, \(\mathrm{Ca}(\mathrm{OH})_{2}\), Heat
3 Reduction, KCN,hydrolysis
4 Oxidation, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\),Heat
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323625 Oxidation of acetaldehyde with selenium dioxide
produces

1 ethanoic acid
2 methanoic acid
3 glyoxal
4 oxalic acid
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323626 \({\text{3C}}{{\text{H}}_{\text{3}}}{\text{CHO}}\xrightarrow[{{\text{298\;K}}}]{{{{\text{H}}^{\text{ + }}}}}{\text{A}}\). Product ' \(\mathrm{A}\) ' is a pleasant smelling liquid (B.P. \(=410 \mathrm{~K})\). It is used as a/an

1 Explosive
2 Hypnotic
3 Tear gas
4 Solvent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323627 Which of the following substances does not give \(\mathrm{HCHO}\) on heating or distillation?

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

323624 What are the correct steps to convert acetaldehyde into acetone?

1 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}_{2} \mathrm{O}\), oxidation by
\(\mathrm{KMnO}_{4} / \mathrm{H}^{+}, \Delta\)
2 Oxidation, \(\mathrm{Ca}(\mathrm{OH})_{2}\), Heat
3 Reduction, KCN,hydrolysis
4 Oxidation, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\),Heat
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323625 Oxidation of acetaldehyde with selenium dioxide
produces

1 ethanoic acid
2 methanoic acid
3 glyoxal
4 oxalic acid
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323626 \({\text{3C}}{{\text{H}}_{\text{3}}}{\text{CHO}}\xrightarrow[{{\text{298\;K}}}]{{{{\text{H}}^{\text{ + }}}}}{\text{A}}\). Product ' \(\mathrm{A}\) ' is a pleasant smelling liquid (B.P. \(=410 \mathrm{~K})\). It is used as a/an

1 Explosive
2 Hypnotic
3 Tear gas
4 Solvent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323627 Which of the following substances does not give \(\mathrm{HCHO}\) on heating or distillation?

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

323624 What are the correct steps to convert acetaldehyde into acetone?

1 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}_{2} \mathrm{O}\), oxidation by
\(\mathrm{KMnO}_{4} / \mathrm{H}^{+}, \Delta\)
2 Oxidation, \(\mathrm{Ca}(\mathrm{OH})_{2}\), Heat
3 Reduction, KCN,hydrolysis
4 Oxidation, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\),Heat
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323625 Oxidation of acetaldehyde with selenium dioxide
produces

1 ethanoic acid
2 methanoic acid
3 glyoxal
4 oxalic acid
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323626 \({\text{3C}}{{\text{H}}_{\text{3}}}{\text{CHO}}\xrightarrow[{{\text{298\;K}}}]{{{{\text{H}}^{\text{ + }}}}}{\text{A}}\). Product ' \(\mathrm{A}\) ' is a pleasant smelling liquid (B.P. \(=410 \mathrm{~K})\). It is used as a/an

1 Explosive
2 Hypnotic
3 Tear gas
4 Solvent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323627 Which of the following substances does not give \(\mathrm{HCHO}\) on heating or distillation?

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

323624 What are the correct steps to convert acetaldehyde into acetone?

1 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}_{2} \mathrm{O}\), oxidation by
\(\mathrm{KMnO}_{4} / \mathrm{H}^{+}, \Delta\)
2 Oxidation, \(\mathrm{Ca}(\mathrm{OH})_{2}\), Heat
3 Reduction, KCN,hydrolysis
4 Oxidation, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\),Heat
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323625 Oxidation of acetaldehyde with selenium dioxide
produces

1 ethanoic acid
2 methanoic acid
3 glyoxal
4 oxalic acid
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323626 \({\text{3C}}{{\text{H}}_{\text{3}}}{\text{CHO}}\xrightarrow[{{\text{298\;K}}}]{{{{\text{H}}^{\text{ + }}}}}{\text{A}}\). Product ' \(\mathrm{A}\) ' is a pleasant smelling liquid (B.P. \(=410 \mathrm{~K})\). It is used as a/an

1 Explosive
2 Hypnotic
3 Tear gas
4 Solvent
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323627 Which of the following substances does not give \(\mathrm{HCHO}\) on heating or distillation?

1 Paraformaldehyde
2 Formalin
3 Paraldehyde
4 Trioxane
For More Updates join with Us