An indicator that turns red in acid isAphenolphthaleinBlitmusCORRECTCuniversal indicatorDmethyl orange
AIToaster TeacherWhy the answer is B, and why the others tempt you.Blue litmus turns red in acid (red→blue in alkali). Phenolphthalein is colourless in acid, pink in alkali.Want this in Pidgin, Yoruba, Igbo or Hausa? Sign up free →