JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
\(K_2HgI_4\) is \(40\%\) ionized in aqueous solution. The value of its van’t Hoff factor \((i)\)
- A \(1.6\)
- B \(1.8\)
- C \(2.0\)
- D \(2.2\)
Answer & Solution
Correct Answer
(B) \(1.8\)
Step-by-step Solution
Detailed explanation
\(\mathop {{K_2}\,[Hg{I_4}]}\limits_{1 - \alpha } \, \rightleftharpoons \,\mathop {2{K^ + }}\limits_\alpha \, + \,\mathop {{{[Hg{I_4}]}^{2 - }}}\limits_\alpha \) Total number of particle \(=\,1+2\alpha \) Hence, Van't Hoff factor \(=\,\frac {1+2\alpha }{1}\)…
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