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NEET levelSingle correct optionDifficulty 1 of 3bn115

What is the name of $Na X_{2} S X_{2} O X_{3}$ ?

Asodium thiosulfate
Bsodium sulfite
Csodium persulfate
Dsodium disulfate

Answer: A

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

is the sulfate ion with one O replaced by S, hence thiosulfate. The salt with two

Na X^{+}

is sodium thiosulfate.

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