CBSE  /  Class 10  /  Science  /  Acids, Bases and Salts

  • 1. 
    One of the constituents of baking powder is sodium hydrogencarbonate, the other constituent is

  • hydrochloric acid
  • tartaric acid
  • acetic acid
  • sulphuric acid

  • 2. 
    Increase in the OH

  • an increases in the pH of solution
  • a decrease in the pH of the solution
  • doesn’t alter the pH of the solution
  • decreases the basic strength of the solution

  • 3. 
    A solution has turned the colour of red litmus paper to blue. The pH of the solution is approximately:

  • 2
  • 5
  • 7
  • 10

  • 4. 
    The pH of three solutions X, Y and Z is 6, 4 and 8 respectively. Which of the following is the correct order of acidic strength?

  • X > Y > Z
  • Z > Y > X
  • Y > X > Z
  • Z > X > Y

  • 5. 
    Which one of the following can be used as an acid-base indicator by a visually impaired student?

  • Litmus
  • Turmeric
  • Vanilla essence
  • Petunia leaves

  • 6. 
    What is gastric acid present in the stomach composed of?

  • Hydrochloric acid
  • Sulphuric acid
  • Nitric acid
  • Lactic acid

  • 7. 
    Which of the following is acidic in nature?

  • Lime juice
  • Human blood
  • Lime water
  • Antacid

  • 8. 
    When the solution of an acid is diluted, what will be the change in pH of the solution?

  • pH of the solution remains the same
  • pH of the solution will increase
  • pH of the solution decreases
  • pH of the solution climbs to 7

  • 9. 
    When the stopper of a bottle containing colourless liquid was removed, the bottle gave a smell like that of vinegar. The liquid in the bottle could be

  • Hydrochloric acid solution
  • Sodium hydroxide solution
  • Acetic acid solution
  • Saturated sodium bicarbonate solution

  • 10. 
    Which of the following is not a mineral acid?

  • Hydrochloric acid
  • Citric acid
  • Sulphuric acid
  • Nitric acid
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