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2.56g of sulfur in 100 g of CS(2) of has...

`2.56g` of sulfur in `100 g` of `CS_(2)` of has depression in freez point of `0.01^(@)C.K_(f)=0.1^(@)` mol `al^(-1)`. Hence, he atomicity of sulfur is `CS_(2)` is

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
4
`DeltaT_(f)=K_(f)m`
`10^(-2)=0.1xxmrArrm=0.1m`
molality `=(2.56xx1000)/(Mxx100)rArrM=256`
atomicity `=(256)/(32)=8`
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