An ideal fuel used in the manufacture of glass and steel is

Options

A. LPG
B. Gobar gas
C. Coal gas
D. Kerosene

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for an ideal fuel used in the manufacture of glass and steel.

2. **Recall Relevant Information**: In the context of fuels used in industrial processes, coal gas is known to be used in the manufacture of glass and steel.

3. **Define Coal Gas**: Coal gas is a mixture of gases that includes hydrogen, methane, and carbon monoxide. It is produced through a process known as destructive distillation of coal.

4. **Explain the Process of Obtaining Coal Gas**: Coal gas is obtained by strongly heating coal in the absence of air. This process allows the coal to break down and release gases.

5. **Conclude the Answer**: Based on the information gathered, the ideal fuel used in the manufacture of glass and steel is **coal gas**.

6. **Review Other Options**:
- **LPG (Liquefied Petroleum Gas)**: Used for domestic purposes like cooking.
- **Cow Dung Gas (Biogas)**: Also used for cooking and domestic purposes.
- **Kerosene**: Obtained from petroleum, used in lamps and as a domestic heater.

7. **Final Answer**: Since coal gas is specifically mentioned as an ideal fuel for industrial use, the correct answer is **coal gas**.

---