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Types of Muscles

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preparation of kmno4 from pyrolusit

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Q. Indicate the steps in the preparation of

{K M n O}_{4}

from pyrolusite ore.

Indicate the steps in the preparation of:

(i) K2Cr2O7 from chromite ore.

(ii) KMnO4 from pyrolusite ore.

Q. Indicate the steps in the preparation of:
(i)

K_{2} C r_{2} O_{7}

from chromite ore. (ii)

K M n O_{4}

from pyrolusite ore.

Q. In the preparation of

K M n O_{4}

(M n O_{2})

is first converted to potassium manganate

(K_{2} M n O_{4})

. In this conversion, the oxidation state of manganese changes from

Q. Pyrolusite in

M n O_{2}

is used to prepare

K M n O_{4}

M n O_{2} I \to M n O_{4}^{2 -} + M n O_{4}^{-}

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