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Question

What is the percent composition of oxygen in C6H12O6 (molar mass = 180)?

A
25%
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B
33%
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C
40%
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D
53%
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E
75%
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Solution

The correct option is D 53%
Total molar mass of O-atoms present in C6H12O6=6×16=96g/mol
Percentage composition = 96180×100=53.33%

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