Question

Write the formulae of the following compounds. Also name the elements present in them. 

(a) Water (b) Ammonia (c) Methane (d) Sulphur dioxide (e) Ethanol

Answer 1

(a). Water- H₂O; Elements present are Hydrogen and Oxygen. 

(b).Ammonia- NH₃; Elements present are Nitrogen and Hydrogen. 

(c).Methane-CH₄; Elements present are Carbon and Hydrogen. 

(d).Sulphur dioxide-SO₂; Elements present are Sulphur and Oxygen. 

(e).Ethanol-C₂H₅OH; Elements present are carbon, hydrogen and oxygen.