Question

In thermite welding a mixture of ____________ is ignited with a burning magnesium ribbon which produces molten iron metal as a large amount of heat is evolved.

Options

• iron (III) oxide and aluminium powder

• iron (II) oxide and aluminium powder

• iron (III) chloride and aluminium powder

• iron (III) sulphate and aluminium powder

Answer 1

In thermite welding a mixture of iron (III) oxide and aluminium powder is ignited with a burning magnesium ribbon which produces molten iron metal as a large amount of heat is evolved.