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JEE Main levelOne or more correct optionsDifficulty 2 of 3bn085

Select all correct ion-name pairs.

A $NO X_{3} X^{-}$ - nitrite
B $S X_{2} O X_{3} X^{2 -}$ - thiosulfate
C $PO X_{4} X^{3 -}$ - phosphate
D $CrO X_{4} X^{2 -}$ - dichromate

Answer: B, C

S X_{2} O X_{3} X^{2 -}

is thiosulfate and

PO X_{4} X^{3 -}

is phosphate.

NO X_{3} X^{-}

is nitrate (nitrite is

NO X_{2} X^{-}

) and

CrO X_{4} X^{2 -}

is chromate (dichromate is

Cr X_{2} O X_{7} X^{2 -}

).

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