JEE · NEET Previous Year Question

The normal rain water is slightly acidic and its pH value is 5.6 because of which one of the following ?

Topic: JEE PYQ

Answer: A. Full step-by-step solution below.

  1. A+O
  2. B++OH
  3. C + +O
  4. D+O

Correct answer: A

Solution

(a)
We are aware that normally rain water has a pH of 5.6 due to the presence of ions formed by the reactions of rain water with carbon dioxide present in the atmosphere.
O(l) + (g) (aq)
(aq) (aq) + (aq)

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