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JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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The mass of 1.5×10201.5 \times 10^{20} molecules of a substance is 20 mg20 \mathrm{~mg}. The molar mass of the substance is
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Correct option: C
80 g80 \mathrm{~g}
Option C (80 g80 \mathrm{~g}) is correct because it is the molar mass calculated from the given number of molecules and mass of the substance.

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