Alloys

Which name is given to mixtures of metals?

• Alloys

• Compounds

• Ores

• Salts

Which two elements form an alloy when heated together?

• Chlorine and Hydrogen

• Chlorine and zinc

• Copper and hydrogen

• Copper and zinc

Solder is an alloy of tin and lead. Which statement is true about solder?

• It can be represented by a chemical formula

• It contains a mixture of lead and tin

• It contains a compound of lead and tin

• It has a higher melting point than lead or tin

Which diagram represents an alloy?

• A

• B

• C

• D

Brass is an alloy of two metals. Which row is correct?

• A

• B

• C

• D

Which material is an alloy that contains a non-metal?

• Brass

• Amalgam

• Steel

• Solder

What are the properties of amalgam that makes it useful for use in tooth fillings?

• Soft

• Hard wearing

• Conducts electricity

• Unreactive

• Low melting point

Which statement about alloys is NOT correct?

• Alloys are more expensive than pure metals

• Alloys are mixtures of metals

• Alloys are not as strong as pure metals

• Alloys conduct electricity

Metal M is mixed with copper to make brass. What is M?

• Iron

• Carbon

• Steel

• Zinc

Which box is correct?

• A

• B

• C

• D