Rusting and Prevention

Which element rusts

• oxygen

• iron

• copper

• water

Which substance(s) is/are needed for rusting

• Water only

• oxygen only

• water and oxygen

• water and salt

What is the chemical name for rust ?

• Iron(I)oxide

• iron(II)oxide

• iron(III) hydroxide

• hydrated iron(III) oxide

Rusting is a redox reaction.

• TRUE

• FALSE

When iron rusts:

• it loses electrons

• it gains electrons

• it shares electrons

When iron rusts, which element is reduced?

• iron

• oxygen

• water

• electrons

Which of these is a not method for preventing rusting ?

• coating the iron with paper

• coating the iron with paint

• coating the iron with plastic

• coating the iron with a more reactive metal

When iron is galvanised, which other metal is used ?

• zinc

• galvanium

• copper

• chromium

galvanising is a form of...

• superficial protection

• superior protection

• sacrificial protection

• sacrimental protection

Which of these are methods of barrier protection?

CHOOSE ALL THAT APPLY.

• coating iron with plastic

• coating the iron with oil

• electroplating with chromium

• coating the iron with paint