`C_(6)H_(5)CH_(2)Cl + X rarr C_(6)H_(5)CH_(2) NH_(2) + Y`
The compounds X and Y are

Options

A. `"HNO"_(3)` and HCl
B. `NH_(3)` and HCl
C. `HNO_(2) and H_(2)O`
D. none of these

Answer

To solve the question, we need to identify the compounds X and Y in the reaction:

\[ C_6H_5CH_2Cl + X \rightarrow C_6H_5CH_2NH_2 + Y \]

### Step 1: Identify the Reactants and Products
The reactant is benzyl chloride (\(C_6H_5CH_2Cl\)), and the product is benzylamine (\(C_6H_5CH_2NH_2\)).

### Step 2: Understand the Reaction Mechanism
In this reaction, the chlorine atom in benzyl chloride is replaced by an amino group (\(-NH_2\)). This type of reaction is typically a nucleophilic substitution reaction, where the nucleophile attacks the carbon atom bonded to the chlorine, leading to the displacement of the chlorine atom.

### Step 3: Identify the Nucleophile
The nucleophile in this reaction is likely ammonia (\(NH_3\)). Ammonia can donate a lone pair of electrons to the carbon atom, allowing it to form a bond with the nitrogen atom and replace the chlorine atom.

### Step 4: Determine the By-product
When the chlorine atom leaves, it forms a chloride ion (\(Cl^-\)). Additionally, since the reaction involves the formation of a proton (\(H^+\)) from the ammonia, the by-product Y is hydrochloric acid (\(HCl\)).

### Step 5: Write the Final Reaction
Combining all the information, we can summarize the reaction as follows:

\[ C_6H_5CH_2Cl + NH_3 \rightarrow C_6H_5CH_2NH_2 + HCl \]

From this, we can conclude:
- \(X = NH_3\) (ammonia)
- \(Y = HCl\) (hydrochloric acid)

### Final Answer
- \(X = NH_3\)
- \(Y = HCl\)

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