Metallic silver can be obtained from AgCl by

Options

A. fusing it with `Na_(2)CO_(3)`
B. Treatment with Zn and `H_(2)SO_(4)`
C. fusing it with sand
D. heating it in a current of `H_(2)`

Answer

To obtain metallic silver from silver chloride (AgCl), we can use several methods. Here’s a step-by-step breakdown of the processes involved:

### Step 1: Understanding the Reaction
Silver chloride (AgCl) is a compound that can be reduced to metallic silver (Ag). The reduction process involves converting AgCl into Ag by removing the chlorine (Cl) ion.

### Step 2: Method 1 - Fusion with Sodium Carbonate
One method to obtain metallic silver from AgCl is to fuse it with sodium carbonate (Na2CO3). The reaction can be represented as follows:

\[ 2 \text{AgCl} + \text{Na}_2\text{CO}_3 \rightarrow 2 \text{Ag} + \text{Na}_2\text{Cl}_2 + \text{CO}_2 \]

In this reaction, the sodium carbonate acts as a reducing agent, and the chlorine is released as sodium chloride (NaCl).

### Step 3: Method 2 - Reduction with Zinc and Sulfuric Acid
Another method involves treating AgCl with zinc (Zn) in the presence of sulfuric acid (H2SO4). The reaction can be represented as:

\[ \text{AgCl} + \text{Zn} + \text{H}_2\text{SO}_4 \rightarrow \text{Ag} + \text{ZnCl}_2 + \text{H}_2\text{SO}_4 \]

In this case, zinc serves as a reducing agent, and it reduces AgCl to metallic silver while forming zinc chloride.

### Step 4: Method 3 - Heating in Hydrogen
A third method is to heat AgCl in a current of hydrogen gas (H2). The reaction is as follows:

\[ \text{AgCl} + \text{H}_2 \rightarrow \text{Ag} + \text{HCl} \]

Here, hydrogen gas reduces silver chloride to metallic silver, releasing hydrogen chloride (HCl) gas.

### Conclusion
From the above methods, we can conclude that metallic silver can be obtained from AgCl by:
1. Fusing with Na2CO3
2. Treating with Zn and H2SO4
3. Heating in a current of hydrogen

Thus, all three methods are valid for obtaining metallic silver from silver chloride.

### Final Answer
Metallic silver can be obtained from AgCl by:
- A) Fusion with Na2CO3
- B) Reduction with Zn and H2SO4
- C) Heating in a current of H2