Multiple choice

Which of the following is chemical formula of anhydrous sodium carbonate or soda ash?

  1. NaOH

  2. Na2O

  3. Na2 CO3

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

Anhydrous sodium carbonate, often called soda ash, has the formula Na2CO3, lacking the water of crystallization found in washing soda.

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