The colour of phenolphthalein indicator in alkaline solution at the end-point of an acid-base titration is? by Sunday | May 8 | Chemistry WAEC | 0 comments A. colourless B. orange C. pink D. yellow Correct Answer: Option A A. colourless Users Also Read These:The colour of phenolphthalein indicator in dilute HNO3 is?The colour of litmus in an alkaline medium is?Student Y carried out the same exercise but used…The colour of methyl orange in alkaline medium is?What is the colour of phenolphthalein indicator in a…