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The following equations are balanced ato...

The following equations are balanced atomwise and chargewise.
(p) `Cr_(2)O_(7)^(2-)+8H^(+)3H_(2)O_(2)rarr2Cr^(3+)+7H_(2)O+3O_(2)`
(q) `Cr_(2)O_(7)^(2-)+8H^(+)5H_(2)O_(2)rarr2Cr^(3+)+9H_(2)O+4O_(2)`
(r) `Cr_(2)O_(7)^(2-)+8H^(+)7H_(2)O_(2)rarr2Cr^(3+)+11H_(2)O+5O_(2)`
The precies equation/equations representing the oxidation of `H_(2)O_(2)` is/are:

A

(P) only

B

(Q) only

C

(R) only

D

all the three

Text Solution

Verified by Experts

The correct Answer is:
a
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