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When 0.1 mole of glucose is dissolved in...

When 0.1 mole of glucose is dissolved in 10 mole of water, the vapour pressure of water is

A

Increased by 1%

B

Increased by 10%

C

Decreased by 1%

D

Decreased by 10%

Text Solution

Verified by Experts

The correct Answer is:
C
According to Raoult.s law,
`(p_(A)^(@)-p_(A))/(p_(A)^(@))=x_(B)`
or `(Deltap)/(p_(A)^(@))=(n_(B))/(n_(A)+n_(B))`
`(Delta p)/(p_(A))=(0.1)/(10+0.1)~~(0.1)/(10)=(1)/(100)=1%`
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