What is a water-soluble base called?
Answer and explanation
Correct answer: Alkali
The governing classification is based on solubility. A base is a substance that can neutralise an acid, but not every base dissolves appreciably in water. A base that dissolves in water is specifically called an alkali; its aqueous solution contains hydroxide ions, such as sodium hydroxide solution. Therefore option C is correct. A salt is a product of many neutralisation reactions, an acid is chemically different, and an indicator only changes colour to show acidity or basicity.
Frequently asked questions
What is the correct answer to this question?
Alkali
Why is this the correct answer?
The governing classification is based on solubility. A base is a substance that can neutralise an acid, but not every base dissolves appreciably in water. A base that dissolves in water is specifically called an alkali; its aqueous solution contains hydroxide ions, such as sodium hydroxide solution. Therefore option C is correct. A salt is a product of many neutralisation reactions, an acid is chemically different, and an indicator only changes colour to show acidity or basicity.
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.
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