Aldehydes, Ketones and Carboxylic Acids · Question 18

Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?

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

Which of the following reactions is not an example for nucleophilic addition-elimination reaction?

1. CH3CHO + NH3 CH3CH=NH + H2O
2. CH3CHO + NaHSO3 CH3- H | OH |C-SO3Na
3. CH3CHO + NH2OH CH3CH=N-OH + H2O
4. CH3CHO + C6H5NHNH2 CH3CH=N-NHC6H5 + H2O

The product formed from the following reaction sequence is [figure]

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

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