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At 20^@C, the vapour pressure of benzene...

At `20^@`C, the vapour pressure of benzene is 70 torr and that of methyl benzene is 20 torr. The mole fraction of benzene in the vapour phase at `20^@`C above an equimolar mixture of benzene and methyl benzene is ________ `xx 10^(-2)`. (Nearest integer)

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