Which statement about acids is the most correct?
Answer and explanation
Correct answer: All acids tend to give hydrogen ions in water
The governing concept is the aqueous definition of an acid. In water, an acid increases the concentration of hydrogen ions, more accurately forming hydronium ions, H₃O⁺. This explains acidic behaviour and indicator changes. Acids are not all safe; some are corrosive. Acids turn blue litmus red, not red litmus blue. Option D is also incorrect because acids are substances, not necessarily metals. Thus option A gives the scientifically correct general statement.
Frequently asked questions
What is the correct answer to this question?
All acids tend to give hydrogen ions in water
Why is this the correct answer?
The governing concept is the aqueous definition of an acid. In water, an acid increases the concentration of hydrogen ions, more accurately forming hydronium ions, H₃O⁺. This explains acidic behaviour and indicator changes. Acids are not all safe; some are corrosive. Acids turn blue litmus red, not red litmus blue. Option D is also incorrect because acids are substances, not necessarily metals. Thus option A gives the scientifically correct general statement.
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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