Consider the following statements:
1. When pH of rain water lies in the range of 6 to 7, it is called acid rain.
2. Tooth enamel starts to corrode when pH of mouth is greater than 7.
3. Under acidic conditions farmers would treat the soil with quick lime.
How many of the statements given above-are correct?
1
Only one statement
2
Only two statements
3
All three statements
4
None of the statements
5
Question not attempted
5
Question Not Attempted