A) 200
B) 400
C) 600
D) 800
Correct Answer: D
Solution :
The minimum molecular weight must contain at least one S atom. \[\therefore \]%\[S=\frac{\text{weight}\,\text{of}\,\text{one}\,\text{S-atom}}{\text{minimum}\,\text{molecular}\,\text{weight}}\times 100\] or\[4=\frac{32}{\text{minimum}\,\text{molecular}\,\text{weight}}\times 100\] or minimum molecular weight\[=\frac{32}{4}\times 100=800\]
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