Question

which of the following can never exist as a gas.
A. water.
B. iron.
C. petrol.
D. none of above
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Answer 1

Answer:

Well. I. Would. Go. For. D. Dont quote. Me. On. That

Explanation:

I. Dunno

Answer 2

Answer: Iron is the correct answer.

Because water and petrol have low boiling point. But iron has high boiling point as well as melting point . Iron requires more heat to melt it , so it can't be exists in gaseous state.

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