How many of the given oxides show acidic property?
$N a_{2} O, K_{2} O, S O_{2}, S O_{3}, C O_{2}, Z n O, A l_{2} O_{3}$

2

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3

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4

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5

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Solution

The correct option is D $5$
Metallic oxides are basic in nature whereas non-metallic oxides are acidic in nature.
$S O_{2}, S O_{3} and C O_{2}$ are non-metallic oxides and hence acidic in nature.
$Z n O and A l_{2} O_{3}$ are amphoteric oxides and can act as an acid as well as a base.
So total of $5$ oxides can show acidic nature during reaction with a base..

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