Question

Solution Colour with pH indicator Chemical nature

A Blue ____

B Red ____

C Green ____

D Yellow ____

E Violet ____

i) Arrange the solutions in increasing order of Hydrogen ion concentration.

ii) When CuSO4(s) is tested with pH paper then colour observation. Could be ?​

Answer 1

Explanation:

3–6 Weak acid Yellow

7 Neutral. Green

8–11 Weak base Blue

> 11 Strong base Violet

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