Crossword clues for They turn litmus red 5 letters:BASESThey turn red litmus paper blueACIDSThey turn litmus redACIDSThey turn litmus paper redACIDSThey turn blue litmus paper redALKALIIt turns red litmus paper blueACIDIt turns litmus redACIDThis turns litmus redACIDSubstance that turns litmus paper redACIDIt turns litmus paper red