Given the following reaction:
CH₃CHO+HCN→X
(Assume compound X has a chiral centre)
The optical activity associated with product X would be: 

1. Laevorotatory 
2. Dextrorotatory
3. Mesocompound
4. Racemic mixture

Benzophenone can be converted into benzene using 

1. anhydrous ${\mathrm{AlCl}}_3$

2. acidified dichromate

3. sodium amalgam in water

4. fused alkali

Which of the following react with NaOH to produce an acid and alcohol?

1. ${\mathrm{CH}}_3\mathrm{COOH}$

2. HCHO

3. ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COOH}$

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}$

Which of the following is incorrect?

1. Fehling solution is used in detection of glucose

2. ${\mathrm{NaHSO}}_3$ is used in detection of carbonyl compounds

3. ${\mathrm{FeCl}}_3$ is used in detection of phenols

4. Tollen's reagent is used in detection of unsaturation.

Formaldehyde on condensation in presence of $\mathrm{Ca}{\left(\mathrm{OH}\right)}_2$ gives

1. formose

2. fructose

3. maltose

4. xylose

In the following reaction, product 'P' is 

$\mathrm{R}-\stackrel{\stackrel{\mathrm{O}}{\parallel }}{\mathrm{C}}-\mathrm{Cl}<mspace\; width="1em"></mspace>\underset{\mathrm{Pd}-{\mathrm{BaSO}}_4}{\overset{{\mathrm{H}}_2}{\to }}<mspace\; width="1em"></mspace>\mathrm{P}$

1. RCOOH

2. RCHO

3. ${\mathrm{RCH}}_3$

4. ${\mathrm{RCH}}_2\mathrm{OH}$

The compound that responds to Tollen's test is

1. ${\mathrm{CH}}_3{\mathrm{COCH}}_3$

2. ${\mathrm{CH}}_3\mathrm{CHO}$

3. ${\mathrm{CH}}_3\mathrm{COOH}$

4. ${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{OC}}_2{\mathrm{H}}_5$

${\mathrm{CH}}_3{\mathrm{CHCl}}_2$, on hydrolysis will give

1. ${\mathrm{CH}}_3\mathrm{CHO}$

2. ${\mathrm{CH}}_3\mathrm{COOH}$

3. ${\mathrm{CHCl}}_3$

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

The reagent used for the separation of acetaldehyde from acetophenone is 

1. ${\mathrm{NH}}_2\mathrm{OH}$

2. ${\mathrm{NaHSO}}_3$

3.  $\mathrm{NaOH}/{\mathrm{I}}_2$

4. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NHNH}}_2$

Acetaldehyde gives orange coloured precipitate on treatment with:

1. 2, 4-DNP

2. ${\mathrm{NH}}_2\mathrm{OH}$

3. ${\mathrm{NaHSO}}_3$

4. NaOH