A substance that dissolves in water to form a base is called what?
Answer and explanation
Correct answer: Alkali
The governing definition is that an alkali is a base that dissolves in water and produces hydroxide ions in solution. Thus, a water-soluble base is called an alkali, making option A correct. An acid produces hydrogen ions, while a salt is an ionic product that may or may not give a basic solution. A metal is an element, not the name for a soluble base. Therefore, the other options do not match the definition.
Frequently asked questions
What is the correct answer to this question?
Alkali
Why is this the correct answer?
The governing definition is that an alkali is a base that dissolves in water and produces hydroxide ions in solution. Thus, a water-soluble base is called an alkali, making option A correct. An acid produces hydrogen ions, while a salt is an ionic product that may or may not give a basic solution. A metal is an element, not the name for a soluble base. Therefore, the other options do not match the definition.
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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