Which of the following oxides is neutral?

$Z n O$

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$S n O_{2}$

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$S i O_{2}$

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C O

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Solution

The correct option is D $C O$
Clearly, $Z n O$ and $S n O_{2}$ are amphoteric.

With HCl, Zn forms Zinc (II) chloride. With NaOH, ZnO forms sodium zincate.

Likewise, $S n O_{2}$ reacts with acid as well as NaOH.

$S i O_{2}$ reacts with a basic oxide like $C a O$ to form $C a S i O_{3}$ .

Only carbon monoxide is neutral.

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Which one of the following oxides is neutral

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