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25 g of an unknown hydrocarbon upon burning produces 88 g of CO 2 and 9 g of H 2 O. This unknown hydrocarbon contains :

1. 18 g of carbon and 7 g of hydrogen
2. 20 g of carbon and 5 g of hydrogen
3. 22 g of carbon and 3 g of hydrogen
4. 24 g of carbon and 1 g of hydrogen

Correct answer: 24 g of carbon and 1 g of hydrogen

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