ICSE 1996 : SCIENCE Paper 2 (Chemistry) - Question 1(d) Answer the following.

SCIENCE
Paper 2 (Chemistry) - 1996
(One hour and a half)

Question 1
(d) (i) A solution has a pH of 7. Explain how you would:

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14.
1. Increase its pH

15.
2. Decrease its pH.

16.
(ii) If a solution changes the colour of litmus from red to blue, what can you say about its pH?

17.
(iii) What can you say about the pH of a solution that liberates carbon dioxide from sodium carbonate?

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