An organic compound having C, H and S elements contains 4% sulphur. The minimum molecular weight of the compound is

Explanation

8 parts of sulphur=100 parts of compound 32 parts of sulphur=?
The minimum molecular weight of the compound `=(32)/(8) xx 100=400`
Molecular weight may be a multiple of 400, like 800, 1200, 1600, 2000 etc.