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Arrange the following solutions in incre...

Arrange the following solutions in increasing order of their osmotic pressures .
(i)34.2 g/litre surcrose
(ii)60 g/litre of urea
(iii)90 g/litre of glucose
(iv)58.5 g/litre of sodium chloride

A

`(i) lt (iii) lt (ii) lt (iv)`

B

`(iii) lt (i) lt (iv) lt (ii)`

C

`(i) lt (iii) lt (iv) lt (ii)`

D

`(ii) lt (iv ) lt (i) lt (iii)`

Text Solution

Verified by Experts

The correct Answer is:
A
`{:(,"Sucrose","Urea","Glucose","NaCl"),("Strength" (gL^(-1)),34.2,60,90,58.5),("Molarity:",34.2/34.2=0.1,60/60=1,90/180=0.5,58.5/58.5=1),(i:,1,1,1,2):}`
We know , `pi`=iCRT
Thus, osomotic pressure of these solutions will lie in following sequence : `{:(Sucrose lt, Glucose lt ,Urea lt ,NaCl ),("(i)","(ii)","(iii)","(iv)"):}`
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