Why must an acid dissolve in water to show its acidic properties?
Answer and explanation
Correct answer: To form hydrogen ions
Acids display their characteristic properties in aqueous solution because water allows their molecules to ionise and produce hydrogen ions, more accurately represented as hydronium ions, H₃O⁺. These ions cause acidic behaviour, including litmus change and reaction with suitable substances. Without water, the ions are not produced freely, so the acid does not show the usual aqueous properties. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
To form hydrogen ions
Why is this the correct answer?
Acids display their characteristic properties in aqueous solution because water allows their molecules to ionise and produce hydrogen ions, more accurately represented as hydronium ions, H₃O⁺. These ions cause acidic behaviour, including litmus change and reaction with suitable substances. Without water, the ions are not produced freely, so the acid does not show the usual aqueous properties. Therefore option A 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.
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