1.

A compound contains 8% sulphur. The minimum molecular weight of the compound is

Answer»

100
200
350
400

Solution :Let .a. ATOMS of sulphur be present in the compound and y be the weight of the compound
8% of weight of compound = weight of sulphur in compound
`8/100 y = 32 xx a`
` y = 3200/8 a = 400 a .
The MINIMUM molecular weight is the ONE in whicha = 1 (i.e 1 atom of sulphur is present)


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