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Question

The mass ratio of hydrogen to oxygen in water is :


A

1:8

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B

3:2

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C

2:3

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D

8:1

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Solution

The correct option is A

1:8


The chemical formula of water is H2O. Here,
Mass of hydrogen atom = 2u
Mass of oxygen atom = 16u
Therefore, the mass ratio of hydrogen to oxygen =216=18=1:8


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