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Q.

In the following solutions : 

(P) 1 m sucrose

 (Q) 1 m potassium ferricyanide and 

(R) 1 m potassium sulphate

maximum value of vapour pressure of solution is that of:

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a

R

b

Q

c

P

d

equal

answer is A.

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Detailed Solution

Lower i value has greater vapor pressure.

i=(P)→1, (Q)→4, (R)→3

Here, the i value in 1 m sucrose is minimum. Thus, it has maximum vapor pressure.

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