Some Basic Concepts Of Chemistry Question 266

Question: $ 12g $ of $ Mg $ (at. mass 24) will react completely with acid to give [MNR 1985]

Options:

A) One mole of $ H _2 $

B) 1/2 mole of $ H _2 $

C) 2/3 mole of $ O _2 $

D) Both 1/2 mol of $ H _2 $ and 1/2 mol of $ O _2 $

Show Answer

Answer:

Correct Answer: B

Solution:

$ M{g^{+2}}\equiv H _2 $

$ n=\frac{12gm}{24gm}=\frac{1}{2} $ mole of $ H _2 $



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