Question

Q1 Ravi wanted to test the nature of milk, baking powder, vinegar and glucose. But he did not know how he could test them at home.

i) Suggest some common substances (any two) which could be used to identify the nature of
any solution .
ii) Specify the colour change produced by them
iii) Identify the nature of the given solutions ​

Answer 1

Explanation:

i)Litmus is extracted from lichens. It has a mauve (purple) colour in distilled water. When added to an acidic solution, it turns red and when added to a basic solution, it turns blue. So, it is used to test the acidic or basic nature of solutions.

Answer 2

Answer:

... powder No change was observed. to Sodium Sulphate solution ...

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