alleryDecomposing 9 g of pure water gives how much hydrogen?
A4 g
B8 g
C9 g
D1 g
Answer & Solution
Correct answer: D. 1 g
1. Water always holds hydrogen and oxygen in the ratio 1:8.
2. Nine parts by mass split into one part and eight parts.
3. So 9 g of water gives 1 g of hydrogen and 8 g of oxygen.
4. The answer is 1 g.
_Source: syllabus Science, Ch 9 'Atomic Foundations of Matter'_
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