CAPE Chemistry Unit 2 · 2013 · Paper 1 · Question Q2
A hydrocarbon contains 87.8% carbon and 12.2% hydrogen by mass. Its empirical formula is
- (A)
\text{CH} - (B)
\text{CH}_2 - (C)
\text{C}_3\text{H}_5 - (D)
\text{C}_4\text{H}_7
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