The correct option is- (c) KOH (aq). Phenolphthalein is a synthetic indicator that is used in acid-base titrations. If it is added to an acidic or neutral solution, the solution will turn colourless. The addition of phenolphthalein to a basic solution will turn it pink due to the formation of phenolphthalein ions. As KOH (potassium hydroxide) is a base, the addition of phenolphthalein to its solution will change its colour to pink. On the other hand, all the other solutions are acidic, they ... Answer: 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. Find an answer to your question An aqueous solution of sodium acetate will turn1. methyl orange yellow2. red litmus blue3. phenolphthalein solution pink4. all o… How to make phenolphthalein indicator - 60590502Explanation: A simple way to make phenolphthalein indicator is to mix 1 gram of phenolphthalein powder with 100 milliliters of 95% ethanol (or another suitable solvent) in a clean and dry container. Once the powder has dissolved, dilute the mixture with distilled water at a ratio of 1:9 ( phenolphthalein solution to water) to obtain the indicator. Note that phenolphthalein is a strong irritant and should be handled with care using appropriate ...
