Analytical Chemistry Question 166
Question: To an acid solution of an anion a few drops of $ KMnO_4 $ solution are added. Which of the following, if present will not decolourise the $ KMnO_4 $ solution
[MP PMT 1997]
Options:
A) $ NO_2^{-} $
B) $ {S^{2-}} $
C) $ C{l^{-}} $
D) $ CO_3^{2-} $
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Answer:
Correct Answer: D
Solution:
Except $ CO_3^{–} $ all other ions are reduced by $ KMnO_4 $ solution.
BETA
