Question

b) Read the following table and answer the questions given below the table..
Model Solution A B C D E F G
PH
1 3 13.8 13 2.2 12.8 10.6
Questions:
a) When blue and red litmus paper is dipped in to the solutions 'A'
what happens to its colour?
b) Mention the strong acids and bases?
c) What happens if solution 'C' is added to solution 'A'? Mention
the nature of the formed salt.
d) Which of the above samples turn phenolphthalein indicator in to
pink colour?
* * * *​

Answer 1

Answer:

a) pH of A is 1 so blue litmus becomes red and red litmus will not change its colour

b)strong acid is A with pH 1 and strong base is C with pH 13.8

c) neutralisation reaction will take place.

neutral salt will be formed because strong acid + strong base is equal to neutral salt

d) C,D,F and G will turn phenolphthalein pink