Food cans are coated with tin and not with zinc because
zinc is costlier than tin.
zinc has a higher melting point than tin.
zinc is more reactive than tin.
zinc is less reactive than tin.
What would you observe when zinc is added to a solution of iron $(II) $ sulphate ? Write the chemical reaction that takes place.
What type of oxides are formed when non-metals combine with oxygen?
Which metals do not corrode easily ?
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Give reasons : Platinum, gold and silver are used to make jewellery.