JEE Main - 9th April 2016

The difference in oxidation state of chromium in chromate and dichromate salts is___

$0.01{\mathrm{MKMnO}}_4$ solution was added to $20.0 \mathrm{mL}$ of $0.05\mathrm{M} \mathrm{Mohr}$ 's salt solution through a burette. The initial reading of $50 \mathrm{mL}$ burette is zero. The volume of ${\mathrm{KMnO}}_4$ solution left in the burette after the end point is....... $\mathrm{mL}$. (nearest integer)

Which of the given reactions is not an example of disproportionation reaction?

In the titration of ${\mathrm{KMnO}}_4$ and oxalic acid in acidic medium, the change in oxidation number of carbon at the end point is

Match List-I with List-II, match the gas evolved during each reaction.

Choose the correct answer from the options given below

Which one of the following is an example of disproportionation reaction?

In which of the following reactions the hydrogen peroxide acts as a reducing agent?

The number of electrons involved in the reduction of permanganate to manganese dioxide in acidic medium is _____ .