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Railways PYQCBT 1 2016

RRB NTPC · Question 6

What is the chemical name of common salt that we eat?

  1. Sodium fluoride

  2. Sodium chloride

  3. Sodium salicylate

  4. Sodium hydroxide

Show answer & explanation

Answer: (B) Sodium chloride

Explanation

Common table salt is sodium chloride (NaCl). Sodium fluoride is used in toothpaste and sodium hydroxide is caustic soda.