Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

When a salt is heated with dil $H_2SO_4$ and $KMnO_4$ solution, the pink colour of $KMnO_4$ is discharged, the mixture contains:

(a) Sulphite
(b) Carbonate
(c) Nitrate
(d) Bicarbonate
Can you answer this question?

1 Answer

0 votes
Answer: Sulphite
$SO_3^{2-}$ reduces $KMnO_4$ and colour of $KMnO_4$ is discharged.
$5SO_3^{2-} + 2MnO^-_4 + 6H^+ \longrightarrow 2Mn^{2+} + 5SO_4^{2-} + 3H_2O$
answered Feb 1, 2014 by mosymeow_1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App