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The product A in the following equations...

The product A in the following equations is `2KMnO_(4)toA+MnO_(2)`is

A

`K_(2)Mn_(2)O_(7)`

B

`K_(2MnO)_(4)`

C

`K_(2)O`

D

`K_(2)O_(2)`

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The correct Answer is:
B
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