The noble gas was first time discovered by

Options

A. Cavendish
B. Willian Ramsay
C. Rayleigh
D. Frankland

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks who first discovered the noble gas.

2. **Recall Historical Context**: Noble gases were first identified in the late 19th century. The most notable among them is argon.

3. **Identify the Scientist**: The scientist credited with the discovery of argon, the first noble gas, is William Ramsay.

4. **Additional Information**: William Ramsay, along with Lord Rayleigh, discovered argon in 1894. However, Ramsay is often credited with its discovery as he was the one who isolated it.

5. **Clarify Other Options**:
- Cavendish is known for discovering hydrogen, not noble gases.
- Lord Rayleigh was involved in the discovery of argon but did not discover it independently.
- Frankland is known for his work on valencies in organometallic chemistry, not for discovering noble gases.

6. **Conclusion**: The correct answer to the question is William Ramsay, who discovered argon.

**Final Answer**: The noble gas was first discovered by William Ramsay.

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