Question

in an experiment to test the pH of the given sample using pH paper write the colour of the pH paper in each case in
1.water
2.dil HCL
3.dil NaOH
4.Dil. Acetic acid

Answer 1

1 both can be used as water is neutral so there is no color change..

2 HCL is acid so we use blue Litmus paper

3 NAOH is base so we use red Litmus Paper..

4... Blue Litmus Paper...

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