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Q.

The option(s) with only amphoteric oxides is (are)

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a

$N O, B_{2} O_{3}, P b O, S n O_{2}$

b

$C r_{2} O_{3}, B e O, S n O, S n O_{2}$

c

$Z n O, A l_{2} O_{3}, P b O, P b O_{2}$

d

$C r_{2} O_{3}, C r O, S n O, P b O$

answer is A, D.

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Detailed Solution

$N O \Rightarrow N e u t r a l$
$B_{2} O_{3} \Rightarrow A c i d i c$
$C r O \Rightarrow B a s i c$
All other oxides are amphoteric

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