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

Answer:

The colours from yellow to red indicate an acidic solution, colours blue to violet indicate alkali and green colour indicates that asolution is neutral. Wide-range pH test papers with distinct colours for each pH from 1 to 14 are also available.