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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3bn100

Select all anions, identified by name, in which the central atom has oxidation number $+ 5$ .

Achlorate
Bpyrophosphate
Cnitrate
Dperchlorate

Answer: A, B, C

Chlorate

ClO X_{3} X^{-}

:

x - 6 = - 1

,

x = + 5

. Pyrophosphate

P X_{2} O X_{7} X^{4 -}

:

2 x - 14 = - 4

,

x = + 5

. Nitrate

NO X_{3} X^{-}

:

+ 5

. Perchlorate

ClO X_{4} X^{-}

:

x - 8 = - 1

,

x = + 7

.

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