Redox Reactions And Electrochemistry Ques 364
Question: Amount of oxalic acid present in a solution can be determined by its titration with $ KMnO_4 $ solution in the presence of $ H_2SO_4 $ . The titration gives unsatisfactory result when carried out in the presence of HCI. Because HCI:
Options:
A) gets oxidized by oxalic acid to chlorine
B) Furnishes $ {{H}^{+}} $ ions in addition to those from oxalic acid
C) Reduces permanganate to $ M{{n}^{2+}} $
D) oxidizes oxalic acid to carbon dioxide and water
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ HCl $ being stronger reducing agent reduces $ MnO_4^{-} $ to $ M{{n}^{2+}} $ and result of the titration becomes unsatisfactory.
