The reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagents are:

Compounds that can exhibit tautomerism are:

What is the order of the stability of the following tautomeric compounds?

1. III > II > I
2. II > I > III
3. II > III > I
4. I > II > III

Predict the products in the given reaction, 

1.		2.
3.		4.

Acetone is treated with excess ethanol in the presence of hydrochloric acid. The product obtained will be:

1.
2.
3.
4.

CH₃CHO and C₆H₅CH₂CHO can be distinguished by:

1. Benedict test

2. Iodoform test

3. Tollen's reagent test

4. Fehling solution test

1. Maleic acid

2. $\alpha$-amino acid

3. Lactic acid

4. Tartaric acid

The product 'D' in the below-mentioned reaction will be:

1.		2.
3.		4.

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

1.
2.
3.
4.