5
Question Question 5
Give the names of the elements present in the following compounds.
(a) Quick lime
(b) Hydrogen bromide
(c) Baking powder
(d) Potassium sulphate
(a) Quick lime (CaO) — Calcium and oxygen
(b) Hydrogen bromide (HBr) — Hydrogen and bromine
(c) Baking powder (NaHCO3) — Sodium, hydrogen, carbon and oxygen
(d) Potassium sulphate (K2SO4) — Potassium, sulphur and oxygen,