A solution is a good conductor of electricity and turns blue litmus red. Which ions mainly give acidic properties to this solution?
Answer and explanation
Correct answer: Hydrogen ions
Turning blue litmus red is a characteristic test for an acidic solution. In aqueous school-level chemistry, acids produce hydrogen ions, more precisely hydronium ions formed when H⁺ associates with water. These ions account for acidic properties, and their movement also helps the solution conduct electricity. Therefore option A is correct. Hydroxide ions indicate basicity, while sodium and carbonate ions do not produce the stated acidic behaviour.
Frequently asked questions
What is the correct answer to this question?
Hydrogen ions
Why is this the correct answer?
Turning blue litmus red is a characteristic test for an acidic solution. In aqueous school-level chemistry, acids produce hydrogen ions, more precisely hydronium ions formed when H⁺ associates with water. These ions account for acidic properties, and their movement also helps the solution conduct electricity. Therefore option A is correct. Hydroxide ions indicate basicity, while sodium and carbonate ions do not produce the stated acidic behaviour.
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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