What is the mass percentage of oxygen in carbon dioxide (CO₂)? [C=12, O=16]

Type: MCQ • Marks: 1

A. 66.6%

B. 27.27%

C. 50%

D. 72.73%

Explanation

Mass % of O = [32 / 44] × 100 = 72.73%.

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Class 9th Science (MCQ)

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