An organic compound contains, `C, H` and `S`. The minimum molecular weight of the compound containing `8%` sulphur is :
`("atomic weight of" S=32 "amu")`

Options

A. `200 g mol^(-1)`
B. `400 g mol^(-1)`
C. `600 g mol^(-1)`
D. `300 g mol^(-1)`

Answer

B

Explanation

For minimum molecular weight compound has just one sulphur atom.
Mass of sulphur atom is 8% of mass of 8% = mass of one sulphur atom
`8% = 32 , 100% = (32)/(8) xx 100 = 400 " "` Mass of molecule = 400 gm/mole