In the reaction,
`RCN rarr RCH_2NH_2`
Select the correct statements (s) about the reaction.
I.It is oxidation reaction.
II. Reagents used in this reaction is `LiAlH_4, H_2/Ni,Na(Hg)/C_2H_5OH`.
Choose the correct option

Options

A. Only I
B. Only II
C. I and II
D. None of these

Answer

To analyze the reaction \( RCN \rightarrow RCH_2NH_2 \) and determine the correctness of the statements provided, we can follow these steps:

### Step 1: Identify the Type of Reaction
- The reaction involves the conversion of a nitrile (\( RCN \)) to a primary amine (\( RCH_2NH_2 \)).
- This transformation involves the addition of hydrogen to the carbon-nitrogen bond, which means that the nitrile is being reduced to an amine.

### Conclusion for Step 1:
- Since the reaction involves a reduction process (gain of hydrogen), **Statement I** ("It is an oxidation reaction") is **incorrect**.

### Step 2: Identify the Reagents Used
- The reagents mentioned are \( LiAlH_4 \), \( H_2/Ni \), and \( Na(Hg)/C_2H_5OH \).
- \( LiAlH_4 \) (Lithium aluminum hydride) is a strong reducing agent that can reduce nitriles to primary amines.
- \( H_2/Ni \) (hydrogen gas in the presence of nickel catalyst) is also a reducing agent that can facilitate the reduction of nitriles to amines.
- \( Na(Hg)/C_2H_5OH \) (sodium amalgam in ethanol) can also act as a reducing agent for this transformation.

### Conclusion for Step 2:
- All the mentioned reagents are indeed reducing agents that can convert nitriles to amines, making **Statement II** ("Reagents used in this reaction is \( LiAlH_4, H_2/Ni, Na(Hg)/C_2H_5OH \)") **correct**.

### Final Answer:
- The correct option is that only **Statement II** is correct.