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JEE Main levelOne or more correct optionsDifficulty 2 of 3bn142

Select ALL compounds in which oxygen has oxidation number $- 1$ (O-O link present, $O X_{2} X^{2 -}$ for the ionic ones).

A $Rb X_{2} O X_{2}$
B $KO X_{2}$
C $BaO X_{2}$
D $OF X_{2}$

Answer: A, C

Rb X_{2} O X_{2}

and

BaO X_{2}

contain

O X_{2} X^{2 -}

, so O is

- 1

.

KO X_{2}

has

- 1/2

and in

OF X_{2}

oxygen is

+ 2

.

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