Industrially O(2) is obtained by...

Industrially `O_(2)` is obtained by

A

Fractional distillation of air

B

`KClO_3 overset(Delta)(rarr)`

C

`Ag_2O overset(Delta)(rarr)`

D

Electrolysis of water

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The correct Answer is:

A

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Industrially O(2) is obtained by
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