An ideal binary liquid solution of A and B has a vapour pressure of `900 mm` of Hg.It is distilled at constant temperature till `2/3` of the original amount is distilled. If the mole fraction of A in residuce and mole fraction of B is condensate is `0.3` and `0.4` respectively and vapour pressure of residue is `860` mm of Hg then identify the correct options.

Options

A. The initial mixture taken should be an equimolar mixture of A and B
B. The first vapours formed will have more moles of A as compared to moles of B.
C. `P_(A)^(@) = 1000 mm` of Hg
D. The vapour pressure above the condensate will be `920 mm` of `Hg` at same temperature

Answer

A, B, C, D