The alcohol expected to have the lowest pKa value among the following is -

1. Ethanol

2. 2-Fluoro ethanol

3. 2,2,2-Trifluoroethanol

4. 2-Chloroethanol

Identify X in the following sequence of reactions :

$\mathrm{X}\underset{\left(\mathrm{ii}\right)<mspace\; width="1em"></mspace>{\mathrm{H}}^{+}/{\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{i}\right)<mspace\; width="1em"></mspace>{\mathrm{CH}}_3\mathrm{MgX}}{\to }}{\mathrm{C}}_5{\mathrm{H}}_{12}\mathrm{O}\underset{573<mspace\; width="1em"></mspace>\mathrm{K}}{\overset{\mathrm{Cu}}{\to }}{\mathrm{C}}_5{\mathrm{H}}_{10}$

1. ${\mathrm{CH}}_3{\mathrm{COCH}}_2{\mathrm{CH}}_3$
2. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}$
3. ${\left({\mathrm{CH}}_3\right)}_{2}CHCHO$
4. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}$

Mark the reaction among the following that does not give benzoic acid as the major product:

1.
2.
3.
4.

The reaction among the following that does not give phenol as a product is:

1.
2.
3.
4.

The major product in the given reaction is:

1.		2.
3.		4.

Phenol on treatment with dilute HNO₃ gives two products P and Q. P is steam volatile but Q is not. P and Q are, respectively:

1.
2.
3.
4.

X, Y, and Z in the following reaction sequence are:

1.
2.
3.
4.

The decreasing order of boiling points of $1°$,$2°$,$3°$ alcohol is:

1. $1°$>$2°$>$3°$                             

2. $3°$>$2°$>$1°$

3. $2°$>$1°$>$3°$                             

4. None of the above

The product formed in the below-mentioned reaction is:

1.
2.
3.
4.