EASY
12th CBSE
IMPORTANT
Earn 100

An organic compound with the molecular formula C9H10O forms 2,4-DNP derivative, reduces Tollens' reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives 1,2-benzenedicarboxylic acid. Identify the compound.

Important Questions on Aldehydes, Ketones and Carboxylic Acids

EASY
12th CBSE
IMPORTANT
An organic compound (A) (molecular formula C8H16O2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene. Write equations for the reactions involved.
HARD
12th CBSE
IMPORTANT
Arrange the following compounds in increasing order of their property as indicated:
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)
EASY
12th CBSE
IMPORTANT

Arrange the following compounds in increasing order of their property as indicated:

CH3CH2CHBrCOOH, CH3CHBrCH2COOH, CH32CHCOOH, CH3CH2CH2COOH (acid strength).

HARD
12th CBSE
IMPORTANT

Arrange the following compounds in increasing order of their property as indicated: 

Benzoic acid, 4-Nitrobenzoic acid, 3,4-Dinitrobenzoic acid, 4-Methoxybenzoic acid (acid strength)

HARD
12th CBSE
IMPORTANT
Give simple chemical tests to distinguish between the following pairs of compounds.
 Propanal and Propanone
EASY
12th CBSE
IMPORTANT

Give simple chemical test to distinguish between the following pair of compounds. 

Acetophenone and Benzophenone.

HARD
12th CBSE
IMPORTANT

Give simple chemical tests to distinguish between the following pair of compounds.

Phenol and Benzoic acid

EASY
12th CBSE
IMPORTANT

Give simple chemical tests to distinguish between the following pair of compounds. 

Benzoic acid and ethyl benzoate.