Home › Andhra Pradesh SSC (Class 10) › Chemistry › Acids, Bases and Salts › Rain is called acid rain when the pH of the rain…
Rain is called acid rain when the pH of the rain water falls below about
A7.0
B8.5
C9.5
D5.6
Answer & Solution
Correct answer: D. 5.6
1. Normal rain is slightly acidic due to dissolved carbon dioxide.
2. When pollutant oxides push the pH lower, below about 5.6, it is acid rain.
3. Such rain harms aquatic life when it drains into rivers.
_Source: AP/TS SCERT Class 10 Physical Science, "Acids, Bases and Salts"_
Related questions
A honey bee sting injects an acid. The pain can be relieved by applyingWhile diluting a concentrated acid, the correct and safe practice is to addThe formula of washing soda isOn strong heating, baking soda gives sodium carbonate, water andThe chemical name of baking soda isBleaching powder is represented by the formulaThe three products of the chloro-alkali process are sodium hydroxide, hydrogen andIn the chloro-alkali process, electricity is passed through