Which of the following pH numbers indicate a strong alkali?
  • 1
  • 5
  • 9
  • 14
What color is universal indicator in strong acid?
  • Green
  • Orange
  • Purple
  • Red
What color is universal indicator in a strong alkali?
  • Green
  • Orange
  • Purple
  • Red
Which of the following pH numbers indicates a neutral substance?
  • 1
  • 5
  • 7
  • 14
Which of the following acids do we have in our stomach?
  • Ethanoic acid
  • Hydrochloric acid
  • Nitric acid
  • Sulphuric acid
Strong acids and strong alkalis are.......
  • Able to turn blue litmus paper red
  • Corrosive and/or caustic
  • Sour
  • Sweet
Which of the following substances contain acid?
  • An orange
  • Bleach
  • Distilled water
  • Washing powder
What color is universal indicator in a neutral solution?
  • Green
  • Orange
  • Purple
  • Red
Which of the following substances contain an alkali?
  • Baking powder
  • Coca cola
  • Distilled water
  • Vinegar
Which of the following pH numbers indicates a strong acid?
  • 1
  • 5
  • 7
  • 14
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