Turmeric becomes reddish-brown and phenolphthalein becomes pink in a solution. What is the nature of the solution?

Correct answer: Basic

Indicators change colour in characteristic media. Turmeric turns reddish-brown in the presence of a base, and phenolphthalein becomes pink in a basic solution, generally when the pH is above its transition range. Since both independent observations indicate alkalinity, the solution is basic. Option B is correct. An acidic solution would not produce this combination of colours, and neutral or metallic are not suitable descriptions of the solution’s acid–base nature.