RCHO and NH₂NH₂ react with each other in an acidic medium. The product obtained is:

1. RCON₃

2. RCH=NH

3. RCH₂NH₂

4. RCH=NNH₂

Reduction by LiAlH₄ of hydrolyzed product of an ester gives:

1. Two alcohols

2. Two aldehyde

3. One acid and one alcohol

4. Two acids

The compound that does not give an iodoform test is:

1. 3-Pentanone

2.  2-Pentanone

3.  Ethanol

4.  Ethanal

A molecule among the following that does not give Claisen condensation reaction is:

1.  ${\mathrm{CH}}_3{\mathrm{COOC}}_2{\mathrm{H}}_5$

2. ${\text{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2{\mathrm{COOC}}_2{\mathrm{H}}_5$ 

3. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{COOC}}_2{\mathrm{H}}_5$

4.  None of the above

The major organic product formed from the following reaction

is:
 

1.		2.
3.		4.

In a set of reactions acetic acid yielded a product D
\(\begin{aligned} &CH_3COOH \xrightarrow{SOCl_2} A \xrightarrow[\text{Anhy.}\ AlCl_3]{\text{Benzene}} B\\& B \xrightarrow{HCN}C\xrightarrow{H_2O}D \end{aligned}\)

The structure of D would be:

1.		2.
3.		4.

Ethylbenzene is obtained from phenyl methyl ketone by using:

1. Zn–Hg+HCl

2. LiAlH₄

3. KMnO₄

4. None of the above

Acetaldehyde reacts with semicarbazide to yield the following as a product:

1.	\( {CH_3CH=NHNH_2} ~\)
2.	\({CH_3CH=NCONHNH_2}~~~\)
3.	\({CH_3CH=NNH-CO-NH_2}~~~~~\)
4.

Cyanohydrin of which of the following compounds on hydrolysis gives an optically active product:

1. HCHO

2. ${\mathrm{CH}}_3\mathrm{CHO}$

3. ${\mathrm{CH}}_3{\mathrm{COCH}}_3$

4. All of the above

Which one among the given options, can be oxidized to produce a carbonyl compound?

1. o-Nitrophenol

2. Aniline

3. 2-Methyl-2-hydroxypropane

4. 2-Hydroxy propane