What is the correct name for the compound NaCl?

• Sodium chloride

• Sodium chlorate

• Sodium oxide

• Sodium carbonate

What elements make up magnesium oxide (MgO)?

• Magnesium and oxygen

• Magnesium and carbon

• Magnesium and sulfur

• Magnesium and nitrogen

The compound FeS is called:

• Iron oxide

• Iron sulfide

• Iron sulfate

• Iron carbonate

In carbon dioxide (CO₂), how many oxygen atoms are there?

• 1

• 2

• 3

• 4

Which formula represents calcium nitrate?

• CaO

• CaCO₃

• Ca(NO₃)₂

• CaSO₄

What two types of elements are found in ceramics?

• Metals and non-metals

• Metals and metals

• Non-metals only

• Noble gases

Al₂O₃ is used in sandpaper and spark plugs. What is its name?

• Aluminium carbonate

• Aluminium oxide

• Aluminium sulfate

• Aluminium hydroxide

Which ceramic is extremely hard and used in cutting tools?

• Silicon carbide

• Magnesium oxide

• Sodium chloride

• Copper sulfate

The compound SiO₂ is also known as:

• Silicon carbide

• Silicon dioxide

• Silicon monoxide

• Sodium silicate

What is magnesium oxide (MgO) commonly used for?

• Making plastics

• Electrical insulation

• Lining furnaces

• Non-stick pans