Question

two drops of indicator phenlphthalein were added to 10 ml solution of sodium hydroxide

Answer 1

Sodium Hydroxide is basic in nature when added to drops off indicator phenolphthalein.

Answer 2

The solution turns pink

Explanation:

• Phenolphthalein is added to Sodium Hydroxide, the solution turns pink in colour

• NaOH + Phenolphthalein ⇒ Pink Coloured solution

• Phenolphthalein is an acid-base indicator it remains colorless when mixed to an acidic or neutral solution.  It changes color and becomes pink if added to basic solutions. NaOH is a base hence when phenolphthalein is added, the solution becomes pink.

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