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Question
The substance ‘X’, when dissolved in solvent water gave molar mass corresponding to the molecular formula ‘X3’. The van’t Hoff factor (i) is _______.
(A) 3
(B) 0.33
(C) 1.3
(D) 1
Solution
(B) 0.33
van’t Hoff factor (i) = Theoreticalmolecular mass/Observed molecular mass
= 1/3
= 0.33
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