Question
If 0.2 gram of an organic compound containing carbon, hydrogen and oxygen on combustion, yielded 0.147 gram carbon dioxide and 0.12 gram water. What will be the content of oxygen in the substance?
BITSAT
Chemistry
Some Basic Concepts of Chemistry
2020
BITSAT 2020
BITSAT Chemistry Question (2020) — Solution
Options
- A. 73.29 \%
- B. 78.45 \%
- C. 83.23 \%
- D. 89.50 \%
Answer
A. 73.29 \%
Step-by-step solution
\% of C = 12 44 0.147 0.2 100=20.045 \% \% of H = 2 18 0.12 0.2 100=6.666 \% \% of O =100-(20.045+6.666)=73.29 \%
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