Choose the most appropriate answer from the following list of oxides that fit the description.
$({SiO}_{2}, {SO}_{2}, {Al}_{2} O_{3}, MgO, CO, {Na}_{2} O)$
An amphoteric oxide.

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Solution

Amphoteric oxide is an oxide that can react both with acids and metals.
${Al}_{2} O_{3}$ is an amphoteric oxide as it can react both with acids and bases.

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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:
$M g O, Z n O, P_{2} O_{3}, A l_{2} O_{3}, N O_{2}$

Select from the following list:

$F e_{2} O_{3}, N O, P b O, M n_{2} O_{7}$ .

(a) Basic oxide...........

(b) Amphoteric oxide ...........

(d) Neutral oxide...........

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

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

An amphoteric oxide.

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.

(b) Choose the most appropriate answer from the following list of oxides which fit the description. Each answer may be used only once.

$[{SO}_{2}, {SiO}_{2}, {Al}_{2} O_{3}, MgO, CO, {Na}_{2} O]$ .
(i) A basic oxide.
(ii) An oxide which dissolves in water forming an acid.
(iii) An amphoteric oxide.
(iv) A covalent oxide of a metalloid.

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Choose the most appropriate answer from the following list of oxides that fit the description.(SiO2,SO2,Al2O3,MgO,CO,Na2O)An amphoteric oxide.

Amphoteric oxide is an oxide that can react both with acids and metals.Al2O3 is an amphoteric oxide as it can react both with acids and bases.

Choose the most appropriate answer from the following list of oxides that fit the description.
$({SiO}_{2}, {SO}_{2}, {Al}_{2} O_{3}, MgO, CO, {Na}_{2} O)$
An amphoteric oxide.

Amphoteric oxide is an oxide that can react both with acids and metals.
${Al}_{2} O_{3}$ is an amphoteric oxide as it can react both with acids and bases.