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Oxygen has -1 oxidation state in the com...

Oxygen has `-1` oxidation state in the compound.

A

Caro's acid

B

Marshall's acid

C

`BaO_2`

D

`K_2 O`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Caro's acid `H_2 SO_5` contains peroxide group. Marshall's acid `H_2 S_2 O_5` contains peroxo group. `BaO_2` is barium peroxide.
Above three contains peroxo hence oxygen state of `O` is `-1`, whereas in `K_2 O, O.S` , is `-2`.
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Knowledge Check

  • Oxygen has an oxidation state of +2 in

    A
    `H_(2)O_(2)`
    B
    `H_(2)O`
    C
    `OF_(2)`
    D
    `SO_(2)`