Solutions Question 394
Question: A solution of 0.2 mole $ Kl $
$ (\alpha =100,%) $ in 1000 g water freezes at $ T_1{{,}^{0}}C $ . Now to this solution 0.1 mole $ HgI_2 $ is added and the resulting solution freezes at $ T_2{{,}^{0}}C $ . Which of the following is correct:
Options:
A) $ T_1=T_2 $
B) $ T_1>T_2 $
C) $ T_1<T_2 $
D) Nothing can be predict
Show Answer
Answer:
Correct Answer: C
Solution:
$ 2KI+HgI_2\to K_2[HgI_4] $ $ K_2HgI_4\xrightarrow[{}]{{}}2{K^{+}}+{{[HgI_4]}^{-2}} $ 2 KI will give 4 ions whereas after mixing of 2 KI we are obtaining only 3 ions.
