A solution containing 3.3g of a substanc...

A solution containing 3.3g of a substance in 125g of benzne (b.pt = `80^(@)C`) boils at `80.66^(@)C`. If `K_(b)` for benzene is `3.28 "K kg mol"^(-1)` the molecular mass of the substance will be :

`130.20`

`129.20`

`132.20`

`131.20`

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OP TANDON-SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)-Set-1 (Level-A)

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