Which salt is formed by complete neutralisation of sodium hydroxide and sulphuric acid?
Answer and explanation
Correct answer: Sodium sulphate
Neutralisation is the reaction of an acid with a base to produce salt and water. Sulphuric acid supplies the sulphate ion, SO₄²⁻, while sodium hydroxide supplies Na⁺ and OH⁻. Complete neutralisation is represented by H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. Thus the salt is sodium sulphate. Sodium chloride requires hydrochloric acid, sodium carbonate requires carbonate ions, and calcium sulphate requires calcium ions. Option B is correct.
Frequently asked questions
What is the correct answer to this question?
Sodium sulphate
Why is this the correct answer?
Neutralisation is the reaction of an acid with a base to produce salt and water. Sulphuric acid supplies the sulphate ion, SO₄²⁻, while sodium hydroxide supplies Na⁺ and OH⁻. Complete neutralisation is represented by H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. Thus the salt is sodium sulphate. Sodium chloride requires hydrochloric acid, sodium carbonate requires carbonate ions, and calcium sulphate requires calcium ions. Option B is correct.
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.
