D-And F-Block Elements Ques 53
Question: The Nesseler’s reagent contains
[CPMT 1976, 88; NCERT 1987; MP PMT 1985; BHU 1996]
Options:
A) $ Hg_2^{++} $
B) $ H{{g}^{++}} $
C) $ HgI_2^{--} $
D) $ HgI_4^{--} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ HgI_2+2KI,\to ,K_2[HgI_4] $ ⇌ $ 2{{K}^{+}}+{{[HgI_4]}^{-,-}} $