Alloys-Lower secondary

Brass is an alloy consisting of a mixture of

• copper and zinc

• copper and lead

• copper and tin

• tin and lead

The main element present in brass and bronze is

• copper

• lead

• zinc

• tin

Which of the following alloy is used to make the body of an aeroplane?

• Brass

• Duralumin

• Steel

• Pewter

Alloy is a ...

• A chemical compound with combination between metal and non-metal

• A salt contain of two or more elements where the main element is non-metal

• Mixture of two or more elements where the main element is metal

Bronze contain copper and

• Zinc

• Tin

• Magnesium

• Antimony

Which of the following alloys is used to make the instrument in Diagram 3?

• Copper

• Bronze

• Steel

• Brass

All metal elements melt at the same boiling point.

• True

• False

Why do jewelers not create jewelry with pure gold, silver, or copper?

• It is a soft metal, so it will rub or scratch away over time.

• It will not be shiny.

• It is impossible to find a pure form of these metals.

• It is too hard to shape into a design.

Steel can become stainless when alloyed with _____.

• chromium and nickel

• copper and zinc

• tin and lead

• iron aand carbon

Steel generally speaking is made of

• iron and carbon

• copper and iron

• tin and carbon

• aluminum and nickel