Question: A Two liquids A and B form an ideal solution. The solution has a vapour pressure of 700 torr at 90 C. It is

A Two liquids A and B form an ideal solution. The solution

A Two liquids A and B form an ideal solution. The solution has a vapour pressure of 700 torr at 90 C. It is distilled till 2/3rd of the solution is collected as condensate. The composition of the condensate is X=0.75 and that of the residue is X = 0.3. If the vapour pressure of the residue at 90 is 600 torr, which of the following option is correct. (a) The composition of the original liquid was XA = 0.6. (b) The composition of the original liquid was X = 0.4. 2500 3 (d) The composition of the original liquid was XB = 0.4 (c) PO = torr

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