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NEET levelSingle correct optionDifficulty 1 of 3bn172

Which ion is the sulfite ion?

A $SO X_{4} X^{2 -}$
B $S X_{2} O X_{3} X^{2 -}$
C $SO X_{3} X^{2 -}$
D $SO X_{2} X^{2 -}$

Answer: C

Sulfite is

SO X_{3} X^{2 -}

(S is +4).

SO X_{4} X^{2 -}

is sulfate and

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

is thiosulfate.

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