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.

On hydrolysis, a sweet-smelling ester A , with a molar mass of 116, produces a carboxylic acid and an alcohol. Alcohol gives a positive iodoform reaction. The formula for A will be:

1.
2.	CH3CH2–O–COC3H7
3.	CH3–O–COC4H9
4.

Alkaline hydrolysis of ${\mathrm{C}}_4{\mathrm{H}}_8{\mathrm{Cl}}_2$ 'A' gives a compound (B) . 'B' on heating with NaOH and ${\mathrm{I}}_2$ produces a yellow precipitate of ${\mathrm{CHI}}_3$.The compound (B) is: 

1.		2.
3.		4.

The product of the below-mentioned reaction is:

1.		2.
3.		4.

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

The structure of A is:

1.		2.
3.		4.