The example of a nucleophilic substitution reaction among the following is:

1.
2.
3.
4.

The compound that is most susceptible to a nucleophilic attack in the carbonyl group is:

1. ${\mathrm{CH}}_3{\mathrm{COOCH}}_3$

2. ${\mathrm{CH}}_3{\mathrm{CONH}}_2$

3. ${\mathrm{CH}}_3{\mathrm{COOCOCH}}_3$

4. ${\mathrm{CH}}_3\mathrm{COCl}$

In a basic medium, acetophenone yields a stable compound A with C₂H₅ONa.

The structure of A is:

1.		2.
3.		4.

The product of the below-mentioned reaction is:

1.		2.
3.		4.

The correct statement among the following about HCOOH is:

1. It is a stronger acid than CH₃COOH

2. It reduces Tollen’s reagent

3. It gives CO and H₂O on heating with conc.H₂SO₄

4. All of the above

What results from a reaction between concentrated H₂SO₄ and acetone?

1. Phorone

2. Mesitylene

3. Mesityl oxide

4. Crotonaldehyde

Compounds A and B are, respectively:

	A	B
1.	CH2CH2CHO	CH=CH-CH2OH
2.	CH2CH2CH2OH	CH=CH-CH2OH
3.	CH=CH-CH2OH	CH=CH-CH2OH
4.	CH2CH2CH2OH	CH2CH2CH2OH

CH₃–CH₂–CHO  + dil NaOH gives   X

What is product X in the above reaction?

1.	${\mathrm{CH}}_3-{\mathrm{CH}}_2\mathrm{COOH}$
2.	${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{COOH}$
3.
4.