The river water is said to be polluted with acidic wastes if the pH of river water is:(a) zero (b) above 7 (c) below 7 (d) exactly 7
Correct Answer : (c) below 7
Explanation :
The river water is said to be polluted with acidic wastes if the pH of river water is below 7 because pH range of 1 to 6.9 indicates acidic nature while pH range of 7.1 to 14 indicates basic nature.
Related Articles The main reason for the abundant coliform bacteria in the water of river Ganga is:(a) immersion of ashes of the dead into the river (b) washing of clothes on the banks of river(c) discharge of industrial wastes into river water (d) disposal of unburnt corpses into river water
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