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Arrange the following aqueous solutions ...

Arrange the following aqueous solutions in the order of their increasing boiling points
(i)`10^(-4)` M NaCl , (ii)`10^(-4)` M Urea , (iii)`10^(-3)` M `MgCl_2` , (iv)`10^(-2)` M NaCl

A

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

B

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

C

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

D

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

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