Question

example of chemical reaction for change of colour

Answer 1

Color Change Chemistry Experiments. ... These chemical reactions are visible examples of chemical changes in matter. For example, color change experiments can show oxidation-reduction, pH changes, temperatures changes, exothermic and endothermic reactions, stoichiometry, and other important concepts.

Answer 2

acids turn blue litmus paper red
acids turn methyl orange red and phenolphthalein solution colourless.

bases turn red litmus paper blue and methyl orange yellow and turn pink in phenolphthalein solution