What will you observe when : (i) Red l...

What will you observe when :
(i) Red litmus paper is introduced into a solution of sodium carbonate.
(ii) A methyl orange drop is added to dilute hydrochloric acid.
(iii) A drop of phenophthalein is added to the solution of lime water.
(iv) Blue litmus is introduced into a solution of ferric chlorede.

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