Multiple choice general knowledge science & technology

The chemical formula of common salt is

  1. Na2Cl

  2. CoSa

  3. NaCl

  4. NaOH
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The chemical formula for common salt (sodium chloride) is NaCl, consisting of one sodium and one chlorine atom. Na2Cl is incorrect, CoSa is not a valid formula, and NaOH is sodium hydroxide (lye).

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