alleryWhich gas is liberated when sodium reacts rapidly and vigorously with water?
AChlorine
BOxygen
CHydrogen
DNitrogen
Answer & Solution
Correct answer: C. Hydrogen
1. Sodium reacts with water as 2Na + 2H2O gives 2NaOH + H2 + heat.
2. The gas released on the right side is hydrogen.
3. Hence hydrogen gas is liberated.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.104_
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