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Question

The Van’t Hoff factor for 0.1M BaCl2 is 2.74. The percentage dissociation of the salt is


A

91.3

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B

74.0

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C

87.0

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D

100

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Solution

The correct option is C

87.0


BaCl2+Ba+2+2Cl

(1α+α+2α)=1+2α=i=2.74 ; α=0.87


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