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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3bn161

Select ALL cases in which the atom has a FRACTIONAL AVERAGE oxidation number (O is $- 2$ , H is $+ 1$ ).

AC in $C X_{3} O X_{2}$
BS in $S X_{4} O X_{6} X^{2 -}$
CFe in $Fe X_{2} O X_{3}$
DN in $HN X_{3}$

Answer: A, B, D

C X_{3} O X_{2}

:

+ 4/3

.

S X_{4} O X_{6} X^{2 -}

:

+ 5/2

.

Fe X_{2} O X_{3}

:

+ 3

, an integer.

HN X_{3}

:

- 1/3

.

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