Question

Ethyl isocyanide on hydrolysis in acidic measure
A. Propanoic acid and ammonium salt
B. Ethanoic acid and ammonium salt
C. Methylamine salt and ethanoic acid
D. Ethylamine salt and methanoic acid

Answer 1

Hint: Hydrolysis is defined as a reaction in which a polymer breaks down into monomer. Hydrolysis reaction releases energy when breaking of bond takes place. In this process, water molecules are used for breakdown.

Complete step by step answer:
Isocyanide is an isomer of a nitrile. It is an organic compound having functional groups, that is, $N\equiv C$ . isocyanides have resonance structures, one with the double bond between nitrogen and carbon, and one with the triple bond between nitrogen and carbon.
When an ethyl isocyanide is reacted with water in an acidic medium, it results in the formation of methanoic acid and ethyl amine. The reaction can be written as follows:
 ${{C}_{2}}{{H}_{5}}NC+{{H}_{2}}O\xrightarrow{{{H}^{+}}}HCOOH+{{C}_{2}}{{H}_{5}}N{{H}_{2}}$
When ethyl amine is passed through an acidic medium, it gives ethyl amine salt. The reaction can be given as follows:
 ${{C}_{2}}{{H}_{5}}N{{H}_{2}}+{{H}^{+}}\to {{C}_{2}}{{H}_{5}}NH_{3}^{+}$
In this reaction, $HCOOH$ is a methanoic acid and ${{C}_{2}}{{H}_{5}}NH_{3}^{+}$ is an ethyl amine salt.
Therefore, ethyl isocyanide on hydrolysis in acidic medium gives ethylamine salt and methanoic acid.

So, the correct answer is Option D .

Additional information:
Hydrolysis reaction is a double decomposition reaction with water. Hydrolysis basically means a process in which two chemicals are separated when reacted with water.
There are three types of hydrolysis:
1.Hydrolysis of salt: In this type of hydrolysis, salt is reacted with water, and interaction between cations and anions of water and salt takes place.
2.Acid – base hydrolysis: This type of hydrolysis takes place between esters or amides. In this type of hydrolysis, when the hydroxyl ion reacts with carbon of the carbonyl group of the ester or amide, it results in the formation of a new compound.
3.ATP hydrolysis: This type of hydrolysis takes place in living organisms during biochemical reactions. It acts as a catalyst and breaks down the proteins, fats and carbohydrates.

Note: When an isocyanide is subjected to hydrolysis it breaks down into amine salt and carboxylic acid.
Acidic medium is defined as a solution in which the concentration of ${{H}^{+}}$ ions is high.
A hydrolysis reaction releases energy by breaking bonds.