Which one among the following pairs of compound and chemical formula is <strong>NOT</strong> correctly matched ?

  1. A. Bleaching powder : CaOCl_2
  2. B. Soda ash : Na_2CO_3
  3. C. Baking powder : NaHCl_2
  4. D. Plaster of Paris : 2CaSO_4.H_2O

Correct Answer: C. Baking powder : NaHCl_2

Explanation

Baking powder contains sodium bicarbonate, which has the chemical formula NaHCO_3, not NaHCl_2.

Related questions on Chemistry

Practice more CDS General Knowledge questions