Question 1

Given below are two statements: Statement-I : Oxidation of p-nitrotoluene with acidic KMnO_4 gives an acid that is stronger than benzoic acid. Statement-II : Reduction of p-nitrotoluene with Sn/HCl fo

Accepted Answer

Oxidation of p-nitrotoluene with acidic KMnO _4 oxidizes the methyl group to a carboxylic acid group, yielding p-nitrobenzoic acid. The - NO _2 group is an electron-withdrawing group (-I and -M effects), which stabilizes the conjugate base (carboxylate ion). Hence, p-nitrobenzoic acid is a stronger acid than benzoic acid. Statement-I is correct. Reduction of p-nitrotoluene with Sn / HCl reduces the nitro group to an amino group, yielding p-toluidine (p-methylaniline). The - CH _3 group is an ele

Question 2

The correct order of decreasing acidity of the following aliphatic acids is :-

Accepted Answer

Acidic strength -I effect 1 + I effect

Question 3

For the given reaction: 'P' is

Accepted Answer

Answer option index: 0

Question 4

Match List I with List II. Choose the correct answer from the options given below:

Accepted Answer

It is reductive ozonolysis It is Friedel-Crafts acylation reaction. Secondary alcohols are oxidised to ketones by CrO _3

Carboxylic Acid Derivatives — Previous Year Questions & Solutions