What type of substance is sodium hydroxide?
Answer and explanation
Correct answer: Strong base
Sodium hydroxide, NaOH, is an ionic compound that dissociates almost completely in water: NaOH → Na⁺ + OH⁻. The high concentration of hydroxide ions gives it strong basic or alkaline properties, so option A is correct. It is not an acid or a neutral salt. Although sodium hydroxide contains a non-metal element, the question asks for the nature of the compound, not the classification of one constituent element.
Frequently asked questions
What is the correct answer to this question?
Strong base
Why is this the correct answer?
Sodium hydroxide, NaOH, is an ionic compound that dissociates almost completely in water: NaOH → Na⁺ + OH⁻. The high concentration of hydroxide ions gives it strong basic or alkaline properties, so option A is correct. It is not an acid or a neutral salt. Although sodium hydroxide contains a non-metal element, the question asks for the nature of the compound, not the classification of one constituent element.
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.
