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The following graph represents variation...

The following graph represents variation of boiling point with composition of liquid and vapours of binary liquid mixture. The graph is plotted at constant pressure.
Which of the following statement(s) is incorrect. Here X & Y stands for mole fraction in liquid and vapour phase respectively.

A

`"X"_("benzene")=0.5" and Y"_("toluene")=0.2`

B

`"X"_("toluene")=0.3" and Y"_("benzene")=0.6`

C

`"X"_("benzene")=0.3" and Y"_("toluene")=0.4`

D

`" if X"_("benzene")=0.7" than Y"_("toluene")lt0.3`

Text Solution

Verified by Experts

The correct Answer is:
B
From the graph it is clear that boiling point of pure benzene is lesser than that of pure toluene i.e.
`"P"_("toluene")^(0)lt"P"_("benzene")^(0)("Benzene is more volatile than toluene")`
`"X"_("benzene")lt"Y"_("benzene ")&" X"_("toluene")gt"Y"_("toluene")`
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