OXIDOS BASICOS Y ACIDOS

How are metal oxides formed?

• When metals react with oxide.
• When metals react with water.
• When metals react with air.
• When metals react with oxygen.

Which of the following is the product of the reaction of aluminium and oxygen?

• aluminium oxide.
• metal oxide
• aluminium ore
• aluminium and oxygen

Magnesium is in Group II.

Magnesium oxide is a basic oxide with the formula of...

• MgO

• MgO₂

• Mg₂O

• Mg₂O₂

Aluminium is in Group III.

Aluminium oxide is an amphoteric oxide with the formula of...

• Al₃O

• AlO₃

• Al₂O₃

• Al₃O₂

Carbon dioxide is an acidic oxide with the formula of...

• CO

• CO₂

• CO₃

• C₂O

Which statement is true of basic oxides? (Select all that apply)

• They are oxides of metals.

• They dissolve in water to form acids.

• They react with acids to form salt and water.

• They react with bases to form salts and water.

Which of the following is an acidic oxide? (Select all that apply)

• SO₂

• H₂O

• CO

• ZnO

Oxides of elements may be classified as acidic, basic or amphoteric.

Which set of oxides is correctly classified?

• Acidic - Carbon dioxide

  Basic - Copper(II) oxide

  Amphoteric - Zinc oxide

• Acidic - Carbon dioxide

  Basic - Zinc oxide

  Amphoteric - Copper(II) oxide

• Acidic - Copper(II) oxide

  Basic - Carbon dioxide

  Amphoteric - Zinc oxide

• Acidic - Zinc oxide

  Basic - Carbon dioxide

  Amphoteric - Copper(II) oxide

Which statement about oxides is correct?

• A basic oxide is an oxide of a non-metal

• Acidic oxides contain ionic bonds

• Amphoteric oxides contain a non-metal

• Basic oxides are always gases

Answer explanation

amphoteric oxides contain a metal and oxygen (non-metal)

Sulphur reacts with oxygen to form:

• Sulphur nitrate

• Sulphur dioxide

• Sulphate

• Sulphide