Question

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

• A. 300 g $mo{l}^{-1}$
• B. 400 g $mo{l}^{-1}$
• C. 200 g $mo{l}^{-1}$
• D. 600 g $mo{l}^{-1}$

Answer 1

The correct option is B 400 g $mo{l}^{-1}$

8 g of Sulphur is present in 100 g of an organic compound

32 g of sulphur is present in $\frac{100}{8}\times 32$ = 400 g of an Organic Compound

So , Minimum Molecular weight of the compound is $400g{mol}^{-1}$