Compounds that can exhibit tautomerism, are:

1. l and ll
2. l and lll
3. ll and lll
4. l, ll and lll

The compound among the following that will not be soluble in
sodium hydrogen carbonate is:

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

Benzaldehyde cannot be prepared by:

1.
2.
3.
4.

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.

The correct order of decreasing acid strength of
trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C), and formic acid (D) is:

1. B > A > D > C

2. B > D > C > A

3. A > B > C > D

4. A > C > B >D

CH₃CHO and C₆H₅CH₂CHO can be distinguished by:

1. Benedict test

2. Iodoform test

3. Tollen's reagent test

4. Fehling solution test

Which acid doesn't exhibit optical isomerism?

1. Maleic acid

2. $\alpha$-amino acid

3. Lactic acid

4. Tartaric acid