Question

Match the common name of compounds with their chemical formula.

• A. Washing soda
• B. Baking soda
• C. Gypsum
• D. Plaster of Paris

Answer 1

The table given below shows the chemical formula of compounds and their chemical as well as common name.

$$\begin{array}{ccc}\text{Chemical formula}& \text{Chemical name}& \text{Common name}\\ {\text{Na}}_2{\text{CO}}_3.10{\text{H}}_2\text{O}& \text{Sodium carbonate decahydrate}& \text{Washing soda}\\ {\text{NaHCO}}_3& \text{Sodium hydrogen carbonate}& \text{Baking soda}\\ {\text{CaSO}}_4.2{\text{H}}_2\text{O}& \text{Calcium sulphate dihydrate}& \text{Gypsum}\\ {\text{CaSO}}_4.\frac{1}{2}{\text{H}}_2\text{O}& \text{Calcium sulphate hemihydrate}& \text{Plaster of Paris}\end{array}$$