Reema prepared and indicator paper by giving a paper ship in a solution X she put a few drops of an unknown solution why in which number of h + ions is less than that of minus ions on this paper she observed that the colour of papers on their solution X and y could be respectively
Answers
Answer:
This is an activity-based question in which you are supposed to collect rainwater from different places and compare their results on the basis of following parameters :
a) pH of the water
b)The action of water on blue litmus paper
c)The action of water on red litmus paper
d)Effect of an indicator like phenolphthalein and methyl orange
Conclusion :
If we take samples of rainwater from different places, we observe the following results :
the pH of water is in between 1-6
Blue litmus paper turns red
No change in the colour of red litmus paper
No change in the colour of rainwater on adding phenolphthalein
rainwater turns red in color on adding methyl orange.
The above observations show that rainwater is acidic in nature. For further assurance, we can compare blue litmus paper dipped in different samples of rainwater with a pH scale.
If rainwater is acidic, then its pH must be in the range of 0-6.
The strength of ac acid depends on its pH value i.e. lower the value of pH, higher will be the strength of an acid and vice-versa.