Question

which one of the following is wrong a.magnesium oxide is basic oxide
b.sulphur dioxide is basic oxide
c.almunim oxide is amphoteric oxide d.carbondioxide is acidic oxide
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Answer 1

Option b is incorrect

ANSWER:

The wrong statement is sulphur dioxide is basic oxide.

REASON:

Suphur dioxide is not a basic oxide. It is an acidic oxide.

EXPLANATION:

• Usually metals form basic oxides and non metals form acidic oxides.

• s and d block elements are mostly metallic in nature and hence their oxides are basic.

• The metals tend to donate electrons to oxygen and their basic character is visualised.

• The p block elements are mostly non metallic in nature.

• Since they are non metals, p block elements form acidic oxides.

OPTIONS:

• Magnesium is a metal of s block and forms basic oxide .

• Sulphur is a non metal of p block and forms acidic oxide.

• Aluminium though belongs to p block, it is a metal. It forms amphoteric oxide. So it is either acidic or basic.

• Carbon is a non metal of p block and forms acidic oxide.