MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Electronic Configuration and Oxidation States

When KMnO4 ...

Question

When $K M n O_{4}$ acts as an oxidising agent in acidic medium, the oxidation number of $M n$ decreases by :

A

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

5

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $5$
When $K M n O_{4}$ acts as oxidizing agent in acidic medium, the oxidation number of manganese decreases from $+ 7$ to $+ 2$ .
Thus, the oxidation number decreases by $5$ .

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion :Equivalent mass of

K M n O_{4}

is equal to one-fifth of its molecular mass when it acts as an oxidising agent in acidic medium. Reason: Oxidation number of

M n

K M n O_{4}

+ 7

.

H C l

not used to make the medium acidic in oxidation reactions of

K M n O_{4}

in acidic medium?

K M n O_{4}

acts as an oxidising agent in alkaline medium. When alkaline

K M n O_{4}

is treated with KI, iodide ion is oxidised to:

K M n O_{4}

acts as an oxidising agent and forms

M n^{+ 2}

, the number of electrons transferred per molecule of

K M n O_{4}

K M n O_{4}

acts as an oxidising agent in acidic, basic or neutral medium. Reason:

K M n O_{4}

oxidises ferrous sulphate to ferric sulphate.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electronic Configuration and Oxidation States

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Electronic Configuration and Oxidation States

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon