Question

Describe an activity to study the colour changes with HCL,sulphuric acid,NaOH solution and NH4OH using red litmus solution, blue litmus solution, methyl orange and phenolpthalein. Record your observations in tabular form.

Answer 1

                Blue litmus paper   Red litmus paper  methyl      phenophthalien

1. HCl            turns red                no change          orange          colourless

2. H2SO4    turns red                no change            orange          colourless

3. NaOH      no change              turns blue             yellow          pink

4. NH4OH    no change              turns blue            yellow          pink

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