Substance X is used extensively for small scale production of metals. It is also used as a deodorant and disinfectant and is one of the constituent of gun powder. Identify X.

Options

A. Coke
B. Sugar charcoal
C. Bone charcoal
D. Wood charcoal

Explanation

To identify substance X, we can follow these steps:

### Step 1: Analyze the Uses of Substance X
- The question states that substance X is used extensively for small-scale production of metals. This suggests that it may be involved in a chemical reaction that helps in extracting metals from their ores.

**Hint:** Consider substances that are commonly used in metallurgy or metal extraction processes.

### Step 2: Consider Other Uses
- The question also mentions that substance X is used as a deodorant and disinfectant. This indicates that it has properties that can neutralize odors and kill bacteria or viruses.

**Hint:** Think about substances that have both industrial and personal care applications.

### Step 3: Identify Gun Powder Constituents
- The question states that substance X is one of the constituents of gun powder. Gun powder typically consists of three main components: potassium nitrate, charcoal, and sulfur.

**Hint:** Recall the common components of gun powder and focus on their properties.

### Step 4: Narrow Down the Options
- Among the constituents of gun powder, potassium nitrate (KNO3) is known for its use in metal extraction, particularly in the production of potassium and as an oxidizer in gun powder. Charcoal is also used in deodorants and disinfectants.

**Hint:** Compare the properties of potassium nitrate and charcoal to see which fits all the uses mentioned.

### Step 5: Conclusion
- Based on the analysis, the substance X that fits all the criteria (used in metal production, deodorant, disinfectant, and a constituent of gun powder) is **Potassium Nitrate**.

**Final Answer:** Substance X is Potassium Nitrate (KNO3).