When few drops of phenolphthalein is added to a dilute solution of sodium hydroxide a pen colour is produced?
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It is basic in nature...so it will turn pink
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When few drops of phenolphthalein are added to dilute a dilute solution of sodium hydroxide a pink colour. The colour of dilute solution of Sodium hydroxide turns pink or adding Phenolphthalein as NaOH is a base .When excess of HCl is added the final mixture becomes colourless due to neutralisation of base with an acid.
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