Aldehydes, Ketones and Carboxylic Acids

[figure] This reduction reaction is known as:

1. Wolff-Kishner reduction
2. Etard reduction
3. Stephen reduction
4. Rosenmund reduction

In the given reactions, identify the reagent A and reagent B. [figure]

1. A - CrO3 B - CrO3
2. A - CrO3 B - CrO2Cl2
3. A - CrO2Cl2 B - CrO3
4. A - CrO2Cl2 B - CrO2Cl2

The compound formed by the reaction of ethanal with semicarbazide contains number of nitrogen atoms.

m-chlorobenzaldehyde on treatment with 50% KOH solution yields :

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The final product A formed in the following multistep reaction sequence is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

From the compounds given below, number of compounds which give positive Fehling's test is . Benzaldehyde, Acetaldehyde, Acetone, Acetophenone, Methanal, 4-nitrobenzaldehyde, cyclohexane carbaldehyde.

Identify the reagents used for the following conversion [figure]

1. A = LiAlH4, B = NaOH(aq), C = NH2-NH2/KOH, ethylene glycol
2. A = DIBAL-H, B = NaOH(aq), C = NH2-NH2/KOH, ethylene glycol
3. A = LiAlH4, B = NaOH(alc), C = Zn/HCl
4. A = DIBAL-H, B = NaOH(alc), C = Zn/HCl

Match List-I with List-II and choose the correct option.

1. A-II, B-IV, C-I, D-III
2. A-I, B-II, C-III, D-IV
3. A-IV, B-III, C-II, D-I
4. A-II, B-I, C-IV, D-III