Question

# Which colour appears when a few drops of phenolphthalein put into the test tube contains lime water?(A) Yellow(B) Orange(C) Pink(D) Colourless

Hint: To answer this question we should know about the indicator properties of phenolphthalein. We should also know about the acidic or basic nature of lime water. Lime water is the common name of dilute solution of $Ca{{(OH)}_{2}}$. Lime water is basic in nature.