The symbol Fe stands for

Carbon dioxide is usually prepared in laboratory by the action of dilute hydrochloric acid on

The process of coating chromium or zinc on iron surface is called

Once a liquid attains its boiling point, temperature

Burning of carbon with oxygen (of air) giving carbon dioxide is an example of  reaction like

 which of the following helps to remove impurities from a solid?

A chemical that combines two or more elements is called  

Any material with a specific chemical composition is called 

When zinc powder is added to copper sulphate solution, the resulting solution is

The gas present around the earth which protect us from the ultraviolet rays of the sun.