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Amphoteric Oxides of Metals

Choose the mo...

Question

Choose the most appropriate answer from
$[S O_{2}, S i O_{2}, A I_{2} O_{3}, C O, M g O, N a_{2} O]$
(d) an amphoteric oxide.

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Solution

The oxides that can behave as an acid, as well as a base, are known as amphoteric oxides.

Aluminium oxide ( $A I_{2} O_{3}$ ) is an ionic oxide. It has the properties of both an acid as well as a base. Therefore, it is an amphoteric oxide.

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(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. Choose the most appropriate answer from

[S O_{2}, S i O_{2}, A I_{2} O_{3}, C O, M g O, N a_{2} O]

(b) An oxide which when dissolved in water from acid.

Q. Choose the most appropriate answer from ( SO2 , SiO2 , Al2O3 , CO , MgO , Na2O )(a) A covalent oxide of a metalloid. (b) An oxide which when dissolved us water form acid . (c) A basic oxide (d) An amphoteric oxide

Q. Choose the most appropriate answer from

[S O_{2}, S i O_{2}, A l_{2} O_{3}, C O, M g O, N a_{2} O]

(a) A covalent oxide of a metalloid.

Choose the most appropriate answer from the following list of oxides which fit the descriptions. Each answer may be used only once:

[S O_{2}, S i O_{2}, A l_{2} O_{3}, M g O, C O, N a_{2} O]

(i) A basic oxide
(ii) An oxide which dissolves in water forming an acid.
(iii) An amphoteric oxide
(iv) A covalent oxide of a metalload.

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Amphoteric Oxides of Metals

Standard X Chemistry

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