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Why is common salt considered a raw material for many chemicals?

Answer and explanation

Correct answer: Sodium hydroxide, chlorine and hydrogen can be obtained from it

The governing concept is the chlor-alkali process. Common salt, sodium chloride, is dissolved in water to make brine. Electrolysis of brine produces sodium hydroxide in solution, chlorine gas at the anode, and hydrogen gas at the cathode: 2NaCl + 2H₂O → 2NaOH + Cl₂ + H₂. Thus option A is correct; salt has many industrial uses and does not form only acids.

Related tags

ScienceClass10Common-SaltChlor-Alkali-ProcessAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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