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JEE Main 201610 AprilOnline
Exam
JEE Main
Year
2016
Date
10 April
Mode
Online
Subject
Chemistry
Chapter
Solutions

JEE Main 2016 · 10 April · Online · Chemistry · Solutions

An aqueous solution of a salt M X _ 2 at certain temperature has a...

An aqueous solution of a salt MX2M{X}_{2} at certain temperature has a Van't Hoff factor of 22. What is the degree of dissociation for this solution of the salt?

Options

  1. A0.500 . 50
  2. B0.330 . 33
  3. C0.670 . 67
  4. D0.800 . 80

Correct answer

A. 0.500 . 50

Step-by-step solution

α=i−1k−1\alpha = \dfrac{i - 1}{k - 1}

=2−13−1=12=0.50= \dfrac{2 - 1}{3 - 1} = \dfrac{1}{2} =0.50

Here,

i= van't hoff factor

α\alpha =degree of dissociation

k= total number of ions(dissociated)

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