How is ethyl amine prepared from methyl iodide ?

Explanation

The preparation of athey amine from methyl iodide is done in two steps :
Step 1 : Methyl iodide when react with potassium cyanide forms Acetonitrile.
`underset("Methyl Iodide")(CH_(3)-I)+underset("Potassium cyanide")(KCN)tounderset("Acetonitrile")(CH_(3)CN)+underset("Potassium iodide")(KI)`
Step 2 : In the second step, acetonitrile further reacs with hydrogen to form ethyl amine in presence of (Na) sodium and ethyl alcohol.
`underset("Acetonitrile")(CH_(3)CN)+4[H]overset(Na//C_(2)H_(5)OH)tounderset("Ethyl amine")(CH_(3)CH_(2)NH_(2))`