Aldehydes, Ketones and Carboxylic Acids · Question 21

The products A and B in the following reaction sequence are : [figure]

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

The incorrect method to synthesize benzaldehyde is

1. [figure] , CH3MgBr, followed by H3O+
2. [figure] , H2, Pd-BaSO4
3. [figure] , DIBAL-H, followed by H2O
4. [figure] , CrO2Cl2 in CS2, followed by H3O+

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

1. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
3. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
4. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)

The intermediate compound 'X' in the following chemical reaction is : [figure]

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

The product formed in the following chemical reaction is : [figure]

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

Identify compound X in the following sequence of reactions : [figure]

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

Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as :

1. Cannizzaro's reaction
2. Cross Cannizzaro's reaction
3. Cross Aldol condensation
4. Aldol condensation

The major product of the following reaction is : [figure]

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

Compound A, C8H10O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell. A and Y are respectively

1. [figure] and I2
2. [figure] and I2
3. [figure] and I2
4. [figure] and I2

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

1. formation of intramolecular H-bonding
2. formation of carboxylate ion
3. more extensive association of carboxylic acid via van der Waals' forces of attraction
4. formation of intermolecular H-bonding