Q.

Which of the following oxides is/are amphoteric in nature?

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a

MgO

b

NO2

c

Al2O3

d

P2O3 

answer is C.

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Detailed Solution

Al2O3 is an oxide which is amphoteric in nature.
Amphoteric oxides are oxides which can act as either acid or base in the reaction. The amphoteric oxide ions are held too strong in a solid lattice to react with water. Aluminium oxide, beryllium oxide, tin oxide, zinc oxide are examples of oxides that are amphoteric in nature.
 
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