JEE MAIN - Chemistry (2016 - 9th April Morning Slot - No. 7)

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)
200 g mol$$-$$1
400 g mol$$-$$1
600 g molāˆ’1
300 g molāˆ’1

Explanation

We know that 8% sulphur means 8 g of sulphur present in 100 g of an organic compound.

Thus, 32 g of sulphur present in $${{100} \over 8} \times 32g$$ = 400 g of organic compound.

Therefore, minimum molecular weight of the compound is 400 g mol$$-$$1.

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