A compound possesses 8% sulphur by mass. The least molecular mass is
A. `200`
B. `400`
C. `155`
D. `355`

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1 Answers

Correct Answer - B
A compound has sulphur = 8%
`:.` 8g of S is present in 100 g
`:.` 32 g of S is present in `(100)/(8)xx32=400g`
(Least molecular mass is when the molecule is supposed to contain one atom of sulphur)

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