InterviewSolution
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InterviewSolution
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An aqueous solution of a solute AB has b.p. of `101.08^(@)C( AB` is `100%` ionised at boiling point of the solution ) and freezes at `-1.80 ^(@)C`. Hence, `AB(K_(b)//K_(f)=0.3)`A. is `100%` ionised at the `f.p.` of the solutionB. behaves as non`-` electrolyte at the `f.p.` of the solutionC. forms dimerD. none of the above |
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Answer» Correct Answer - 2 Given `DeltaT_(b)=1.08^(@)C," "I=2` at boiling pt. of solution. and `DeltaT_(f)=1.80^(@)C,` and `(k_(b))/(k_(f))=0.3` so`" "(DeltaT_(b))/(DeltaT_(f))=(I_(b)k_(b)m)/(I_(f)k_(f)m)` so`" "I_(f)=1` `i.e.,AB` behaves as non-electrolyte at the f.p. of the solution. |
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