D And F Block Elements Question 219

Question: Which metal does not give the following reaction M + water or steam $ \to $ oxide + H¯

[Pb. PMT 2001]

Options:

A) Mercury

B) Iron

C) Sodium

D) Magnesium

Show Answer

Answer:

Correct Answer: A

Solution:

Mercury does not give $ H_2 $ on reacting with water because its ionisation energy is so much high.



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