Benzaldehyde cannot be prepared by:

1.
2.
3.
4.

The Clemmensen reduction of a ketone is carried out in the presence of:

1. $\mathrm{Zn}$-$\mathrm{Hg}$ with $\mathrm{HCl}$

2. ${\mathrm{LiAlH}}_4$

3. ${\mathrm{H}}_2$ and $\mathrm{Pt}$ as a catalyst

4. Glycol with $\mathrm{KOH}$

The hydrogenation of benzoyl chloride in the presence of Pd and BaSO₄ gives:

1. Benzyl alcohol

2. Benzaldehyde

3. Benzoic acid

4. Phenol

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.

HVZ reaction cannot be given by:

What is the major product of the reaction between cyclohexanecarbaldehyde and Tollens' reagent?

1.		2.
3.		4.	None of these

The compound that does not give an iodoform test is:

1. 3-Pentanone

2.  2-Pentanone

3.  Ethanol

4.  Ethanal

What is the most suitable reagent for the below mentioned conversion?

${\mathrm{CH}}_3—\mathrm{CH}=\mathrm{CH}—{\mathrm{CH}}_2—\stackrel{\mathrm{O}}{\mathrm{C}}$
$\left|\right|$ $-{\mathrm{CH}}_3$ $$ $\to$ $$
$$ ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}—{\mathrm{CH}}_2—\stackrel{\mathrm{O}}{\mathrm{C}}$
$\left|\right|—\mathrm{OH}$

1.  Tollens' reagent 

2.  Benzoyl peroxide

3.  ${\mathrm{I}}_2$ and NaOH solution

4.  Sn and NaOH solution

The conversions can be used for Clemmensen reduction are:

a.  Benzaldehyde into benzyl alcohol.

b.  Cyclohexanone into cyclohexane.

c.  Benzoyl chloride into benzaldehyde.

d.  Benzophenone into diphenyl methane.

The compound on hydrolysis of 50% aqueous sodium hydroxide that produces the corresponding alcohol and acid is:

1. $C_6{H}_{5}C{H}_{2}CHO$

2. $C_6{H}_{5}CHO$

3. $C{H}_{3}C{H}_{2}C{H}_{2}CHO$

4. ${\mathrm{CH}}_3-\stackrel{\mathrm{O}}{\stackrel{\left|\right|}{\mathrm{C}}}-{\mathrm{CH}}_3$