Which of the following pairs of common name and chemical name is correctly matched?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Baking soda – Sodium hydrogencarbonate
Baking soda is sodium hydrogencarbonate, NaHCO3. Washing soda is sodium carbonate decahydrate, bleaching powder is calcium oxychloride and Plaster of Paris is calcium sulphate hemihydrate, so the other three pairs are wrong.