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In which year is concentration of hydrogen ion the highest?
(A) 2002
(B) 2008
(C) 2011
(D) 2005
Answer -
Now,
- Acids increase H+ concentration
- More acidic , more H+ concentration
- Thus, lesser ph , more H+ concentration
Now, ignore the red bar here. We focus on our bar graphs
Look at the blue bars (Rain pH value) for the years in the options:
-
2002 – pH is highest among the four (around 5.3)
-
2005 – pH is a bit below 5
-
2011 – pH is lower still (around 4.7)
-
2008 – pH is the lowest (around 4.4)
Since pH is lowest in 2008 , that year must have the highest hydrogen ion concentration .
So, the correct answer is (a) - 2008
