Multiple choice

Baking soda is

  1. Na2CO3

  2. Na2SO4

  3. NaHCO3

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Baking soda is the common name for sodium bicarbonate (NaHCO₃). It is used in baking as a leavening agent because it decomposes on heating to release CO₂. Sodium carbonate (Na₂CO₃) is washing soda, and sodium sulfate (Na₂SO₄) is Glauber's salt.

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