Why can acid rain water be more corrosive than normal water?
Answer and explanation
Correct answer: It contains acidic substances that lower pH
The governing concept is the relationship between acidity and pH. Acid rain forms when atmospheric acidic oxides produce acids in rainwater. The dissolved acids increase hydrogen-ion concentration and lower the pH. Such water can react more readily with metals, carbonates, and some building materials, increasing corrosion or damage. Therefore option A is correct. Sugar, absence of ions, and pH 14 do not describe acid rain.
Frequently asked questions
What is the correct answer to this question?
It contains acidic substances that lower pH
Why is this the correct answer?
The governing concept is the relationship between acidity and pH. Acid rain forms when atmospheric acidic oxides produce acids in rainwater. The dissolved acids increase hydrogen-ion concentration and lower the pH. Such water can react more readily with metals, carbonates, and some building materials, increasing corrosion or damage. Therefore option A is correct. Sugar, absence of ions, and pH 14 do not describe acid rain.
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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