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NDA 2020 GAT · General Knowledge · Chemistry in Everyday Life · easy

The chemical formula of baking soda is

Single correct option

The chemical formula of baking soda is
  1. A. NaHCO3
  2. B. Na2CO3
  3. C. NaOH
  4. D. CaCO3
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Answer: (A) NaHCO3

Baking soda is sodium hydrogencarbonate, NaHCO3. On heating it gives sodium carbonate, water and carbon dioxide, which makes cakes rise. Washing soda is Na2CO3.10H2O, caustic soda is NaOH and CaCO3 is limestone, which are the confusable alternatives.
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Original question written in the NDA 2020 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake