Steel is formed by the combination of Iron and ____________________.

Which of the following alloy is formed by the combination of Copper, Tin and Zinc ?

For corrosion of metals, there should be   _______________________

Brass is formed by the combination of Copper and _________________.

Iron is shiny gray initially but after some time forms the layer of hydrated Iron (III) oxide in the presence of  _____________________

The uses of Duralumin is/are _________________.

Aluminium is extracted from bauxite which is a/an ______________

Haematite is an ore of ___________

Which of the following are correct :

(a) Metals like Potassium, Sodium, Calcium,etc. are highly reactive.

(b) The process of extracting metals from their ores and refining them for use is known as metallurgy.

Which of the following is a carbonate ore of copper?