What is the main classification of sodium hydroxide obtained in the chlor-alkali process?
Answer and explanation
Correct answer: Base
Sodium hydroxide has the formula NaOH and dissociates in water to produce sodium ions and hydroxide ions, OH⁻. A substance that supplies hydroxide ions in aqueous solution is classified as a base; NaOH is specifically a strong base because it dissociates extensively. Therefore option B is correct. It is not an acid, salt, or neutral oxide. Sodium chloride is the salt involved as the brine starting material, not the NaOH product.
Frequently asked questions
What is the correct answer to this question?
Base
Why is this the correct answer?
Sodium hydroxide has the formula NaOH and dissociates in water to produce sodium ions and hydroxide ions, OH⁻. A substance that supplies hydroxide ions in aqueous solution is classified as a base; NaOH is specifically a strong base because it dissociates extensively. Therefore option B is correct. It is not an acid, salt, or neutral oxide. Sodium chloride is the salt involved as the brine starting material, not the NaOH product.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
