General Science • ChemistryEasy
What is the chemical formula of common salt, which is widely used in daily life and food preservation?
A. Sodium carbonate
B. Sodium chloride✓ Correct Answer
C. Sodium bicarbonate
D. Sodium hydroxide
💡 Solution & Explanation
Common salt is chemically known as sodium chloride, represented by the formula NaCl, formed by the ionic bonding of sodium and chlorine ions. The other substances listed are washing soda, baking soda, and caustic soda respectively, which serve completely different industrial and household functions. Sodium chloride occurs naturally in seawater and mineral deposits known as rock salt.
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