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MCQ
If 4 g of hydrogen burns completely in excess oxygen to form water, the mass of water formed will be ____.
Unit-1 Nature of Science in Chemistry
A 18 g
B 32 g
C 36 g
D 40 g
Explanation

In water, hydrogen and oxygen are in the ratio 1 : 8 by mass, so 4 g of hydrogen needs 32 g of oxygen, giving 4 + 32 = 36 g of water.

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