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At 35^@C , the vapour pressure of CS2 is...

At `35^@C` , the vapour pressure of `CS_2` is 512 mm Hg and that of acetone is 344 mm Hg . A solution of `CS_2` in acetone has a total vopour pressure of 600 mm Hg. The false statement amongst the following is

A

A mixture of 100 ml of acetone and 100 ml of `CS_2` has a total volume of 200 ml.

B

When acetone and `CS_2` are mixed at `35^@C` , heat must be absorbed in order to produce a solution at `35^@C`

C

When acetone and `CS_2` are mixed at `35^@C` , heat is released .

D

Raoult's law is obeyed by both , `CS_2` and acetone for the solution in which the moles fraction of `CS_2` is 0.25

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The correct Answer is:
B
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