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Why is sodium hydroxide called a strong base?

Answer and explanation

Correct answer: It gives many hydroxide ions in water

The governing concept is the strength of a base, which depends on the extent of ionisation in water and the concentration of hydroxide ions produced. Sodium hydroxide dissociates almost completely: NaOH(aq) → Na⁺(aq) + OH⁻(aq). Therefore it is a strong base, so option A is correct. Hydrogen ions indicate acidity, neutrality means pH 7, and sodium hydroxide is not a gas under ordinary conditions.

Related tags

ScienceClass10Sodium-HydroxideStrong-BaseAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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