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(A): Pyrolusite is an ore of manganese. ...

(A): Pyrolusite is an ore of manganese.
(R) : Formula of pyrolusite is `Mn_(3)O_(4)`.

A

`624.67KJ`

B

`462.67KJ`

C

`476.67KJ`

D

`426.67KJ`

Text Solution

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The correct Answer is:
B
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