True: pH is a measure of the hydrogen ion concentration, Acidic solution turn universal indicator red, Pure water has a pH of 7, pH 4 is more acidic than pH 6, pH 3 is less acidic than pH 1, Solution A turns universal indicator red. It is an acid., Solution C turns universal indicator purple. It is alkaline., An alkali has more hydroxide ions than hydrogen ions., False: pH is a measure of the hydroxide ion concentration, Alkaline solution turn universal indicator green., pH 8 is more alkaline than pH 10, A solution with pH 7 will turn universal indicator red, Water has a pH of 8, Solution B has a pH of 6. It is neutral., Solution D has a pH of 7. It is alkaline., The pH of an insoluble substance is 7.,

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