Q 5. Give the names of the elements present in the following compounds.
(a) Quick lime
(b) Hydrogen bromide
(c) Baking powder
(d) Potassium sulphate.
The names of the elements present in the given compounds are :
(a) Quick lime :
= Calcium and Oxygen.
(b) Hydrogen bromide
= Hydrogen and Bromine.
(c) Baking powder
= Sodium, Hydrogen, Carbon, and Oxygen.
(d) Potassium sulphate.
= Potassium, Sulphur, and oxygen.