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NEET levelSingle correct optionDifficulty 1 of 3bn062

What is the IUPAC name of $Na X_{2} O X_{2}$ , which contains the $O X_{2} X^{2 -}$ ion?

Asodium oxide
Bsodium superoxide
Csodium peroxide
Dsodium dioxide

Answer: C

Na X_{2} O X_{2}

contains

Na X^{+}

and the peroxide ion

O X_{2} X^{2 -}

(O-O single bond, oxygen

- 1

). The ion is named peroxide, so the compound is sodium peroxide. Sodium oxide is

Na X_{2} O

and sodium superoxide would be

NaO X_{2}

.

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