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On complete combustion 1.0g of an organic compound (X) gave 1.46 g of CO 2 and 0.567 g of H 2 O. The empirical formula mass of compound (X) is ______g. (Given molar mass in g mol –1 C : 12, H : 1, O : 16)

1. 30
2. 60
3. 15
4. 45

Correct answer: 30

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