Chemistry

Chemistry

Problem

The ratio of the mass of C-12 atom to that of an atom of element X (whose atomicity is four) is 1 : 9. The molecular mass of element X is 1) 480 g mol−1480\,\text{g mol}^{-1} 2) 432 g mol−1432\,\text{g mol}^{-1} 3) 36 g mol−136\,\text{g mol}^{-1} 4) 84 g mol−184\,\text{g mol}^{-1} 1) 480 g mol−1480\,\text{g mol}^{-1} 2) 432 g mol−1432\,\text{g mol}^{-1} 3) 36 g mol−136\,\text{g mol}^{-1} 4) 84 g mol−184\,\text{g mol}^{-1}

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