Elements, Mixtures and Compounds

Which of the following is a non-metal?

• Sulfur

• Aluminium

• Copper

• Magnesium

What is the appearance of metals?

• Transparent

• Colorful

• Shiny

• Dull

Which property is NOT associated with non-metals?

• Poor conductor of heat

• Brittle

• Ductile

• Dull appearance

What is the chemical formula for water?

• H₂O₂

• O₂

• CO₂

• H₂O

Which of the following is a compound?

• Copper

• Magnesium Oxide

• Oxygen

• Iron

What is the main constituent of sand?

• Carbon Dioxide

• Magnesium Oxide

• Iron Sulfide

• Silicon Dioxide

Which of the following is a property of solutions?

• Particles can be seen

• Insoluble substances form deposits

• Homogeneous mixture

• Can be separated by filtration

What happens to sugar when dissolved in warm water?

• It becomes a gas

• It forms a solid

• It dissolves faster

• It does not dissolve

Which of the following is a characteristic of a suspension?

• Particles are evenly distributed

• Particles can be seen

• It cannot be separated

• It is a homogeneous mixture

What is the solute in a sugar solution?

• Vinegar

• Salt

• Sugar

• Water