What are amphoteric oxides

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Solution

An amphoteric oxide is an oxide that can act both as an acid and as a base. An example is aluminium oxide, Al2O3. It reacts with acids to form the corresponding aluminium salt, and with bases to form salts called aluminates.

Example reactions

Al2O3 + 6HCl → 2AlCl3 + 3H2O
Al2O3 + 2NaOH → Na2Al2O4 + H2O

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Similar questions

Which of the following are amphoteric oxides?

Q. Question 6
What are amphoteric oxides? Give two examples of amphoteric oxides.

(a) What are amphoteric oxides? Give two examples of amphoteric oxides.
(b) Choose the acidic oxides, basic oxides and neutral oxides from the following:
$N a_{2} O : C O_{2}; C O; S O_{2}; M g O; N_{2} O; H_{2} O .$
(c) Which of the following are amphoteric oxides:
$M g O, Z n O, P_{2} O_{3}, A l_{2} O_{3}, N O_{2}$

Q. Question 6
What are amphoteric oxides? Give two examples of amphoteric oxides.

What are oxides ? Give two examples of each of the following oxides.

(a) Basis oxide (b) Acidic oxide

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