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Class 10 Science Medium Mcq English Medium

2Na(s) + 2H2O(l) gives

Question
2Na(s) + 2H2O(l) gives
2NaOH(aq) + H2(g) + heat energy
Na2O + H2
NaOH + H2O
2NaH + O2
Answer
2NaOH(aq) + H2(g) + heat energy
Detailed Explanation
Sodium reacts vigorously with cold water to give sodium hydroxide, hydrogen gas and heat energy.
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