Ethyl benzoate can be prepared from benzoic acid by using:
1. Propyl alcohol
2. Ethyl alcohol and dry HCl
3. Ethyl chloride
4. Sodium ethoxide
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.
2.
3.
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.
3.
4. All of the above