1. Sulfuric acid turns red litmus paper blue.   True   False   2. Pure distilled water gives a pH scale reading equal to _______.   14   1   7   0   Hint Half-n-half Clue   3. Methyl orange solution turns acids _______.   yellow   pink   orange   colorless   Half-n-half Clue   4. Phenolphthalein solution turns bases _______.   colorless   yellow   orange   pink   Half-n-half Clue   5. A pH scale reading equal to 7 indicates _______ medium.   an unknown   an acidic   a basic   a neutral   Half-n-half Clue   6. Sodium hydroxide turns red litmus paper blue.   True   False   7. A pH scale reading of 2 indicates a _______.   strong acid   weak acid   weak base   strong base   Half-n-half Clue