When rain is accompanied by a thunderstorm, the collected rain water will have pH value:
A
Which depends upon the amount of dust in the air
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B
Slightly lower than that of rain water without the thunderstorm
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C
Slightly higher than that of rain water without the thunderstorm
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D
Uninfluenced by occurrence of thunderstorm
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Solution
The correct option is B Slightly lower than that of rain water without the thunderstorm Normal rain water has a pH value of 5.6 thunderstorms lower this value by reproducing nitric acid which makes rain water acidic. Therefore rain water accompanying thunderstorm has a pH lower than 5.6