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The colour and magnetic nature of mangan...

The colour and magnetic nature of manganate ion `(MnO_(4)^(2-))` is

A

green, process

B

purple, diamagnetic

C

green, diamagnetic

D

purple, paramagnetic

Text Solution

Verified by Experts

The correct Answer is:
A
`MnO_(4)^(2-)` green and paramagnetic, because it has one unpaired electron.
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The colour and magnetic nature of mangante ion (MnO_(4)^(2-)) is

What is the shape and magnetic nature of permanganate ion?

Assetion : The green manganate is paramagnetic but the pruple permanganate is diamagnetic in nature. Reason : MnO_(4)^(2-) contains on upaired electron while in MnO_(4)^(-) all electrons are paried.

Assertion: KMnO_(4) is purple in colour due to charge transfer . Reason :There is no electron present in d-orbitals of maganese in MnO_(4)^(-))

MnO_(2) is the most important oxide of manganese , MnO_(2) occurs natually as the black coloured mineral pyrolusite. It is an oxidising agent, and decomposes to Mn_(3)O_(4) on heating to 530^(@) C. It is used in the preparation of potassium permanaganate and in the productioon of Cl_(2) gas. Over half million tonnes per year of MnO_(2) is used in dry batteries. Q. In which of the following species, the colour is due to charge transfer? (I) [Mn(OH)_(4)]^(2-) (II) MnO_(4)^(2-) (III) MnO_(4) (IV) KMnO_(4)

Potassium manganate (K_(2)MnO_(4)) is formed when:

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