Chapter 15, Problem 15.38AP

(a)

Interpretation Introduction

Interpretation:

The cyclopentanone treated with Tollens reagent, Benedict’s reagent it will give positive result or negative result it should be identified.

Concept Introduction:

Oxidation: Generally alcohols can be oxidized to aldehyde or ketone. Aldehyde can be further oxidized to carboxylic acid.

In aldehyde oxidation the hydrogen bonded to the carbonyl carbon is replaced by a hydroxyl group. Moreover ketones do not have this hydrogen, do not react cleanly with oxidizing agents.

(b)

Interpretation Introduction

Interpretation:

The Hexanal treated with Tollens reagent and Benedict’s reagent it will give positive result (or) negative result it should be identified.

Concept Introduction:

Tollens reagent: This test is used in organic chemistry to test for the presence of aldehydes. In this reaction, an aldehyde is oxidized to a carboxylic acid while the $A{g}^{+}$ is reduced to silver metal, which deposits as a thin film on the inner surface of the glass. The generic reaction is as follows and is specific for aldehydes.

Benedict’s reagent: This reagent was extensively used as a test for surges in the urine, which are primarily aldehyde and alpha hydroxyl ketones.

(c)

Interpretation Introduction

Interpretation:

Given molecule (c) treated with Tollens reagent and Benedict’s reagent it will give positive result (or) negative result it should be identified.

Concept Introduction:

Tollens reagent: This test is used in organic chemistry to test for the presence of aldehydes. In this reaction, an aldehyde is oxidized to a carboxylic acid while the $A{g}^{+}$ is reduced to silver metal, which deposits as a thin film on the inner surface of the glass. The generic reaction is as follows and is specific for aldehydes.

Benedict’s reagent: This reagent was extensively used as a test for surges in the urine, which are primarily aldehyde and alpha hydroxyl ketones.