Question

Brad is testing three solutions with litmus paper. After dipping the litmus paper strips in the solutions, he observes two papers turning blue and one turning red. Out of the three solutions, how many are acidic

Answer 1

A blue litmus paper becomes red when immersed in acidic solutions while a red litmus paper retains its color. Only one solution in the experiment is acidic since one litmus paper turned red after it was dipped in a solution.