Quiz  /  Acids and Bases Class 10 MCQ Questions With Answers

  • 1. 
    Releases hydrogen in an aqueous solution.

  • base
  • strong base
  • acid
  • weak base

  • 2. 
    What is a titration?

  • when the moles of hydrogen ions is equal to the moles of hydroxide ions
  • adding a known amount of solution of known concentration to determine the concentration of an unknown
  • reaction in which an acid and a base react in an aqueous solution to produce a salt and water
  • the extent of ionization of an acid or base

  • 3. 
    The pH of a solution is 2.0. What is the [OH-] concentration?

  • 1x10-12M
  • 12 M
  • 1x10-2M
  • 2 M

  • 4. 
    Phenolophalein turns from clear to pink when the pH turns

  • acidic
  • basic
  • saline
  • ionic

  • 5. 
    KOH is ...

  • an acid
  • a base
  • a salt
  • an ionic compound

  • 6. 
    HF is...

  • an acid
  • a base
  • a salt
  • an ionic compound

  • 7. 
    A substance is found to have the following characteristics:Very bitter taste Feels slippery to the touch Produces OH- ions when dissolved in water In what category would the substance be classified?

  • acid
  • base
  • enzyme
  • fatty acid

  • 8. 
    What is the pOH of a 1 x 10-8 M solution of HNO3?

  • 8
  • 6
  • 7
  • 9

  • 9. 
    What is the pH of a solution where the [H+] is 1.0 x 10-11?

  • 11
  • 13
  • 14
  • 1

  • 10. 
    What is the [H+] if the pH is 4.0?

  • 1.0 x 10-10 M
  • 1.0 x 10-4 M
  • 1.0 x 10-14 M
  • 1.0 x 10-7 M

  • 11. 
    What is the pOH of a solution that has a pH of 2?

  • 10
  • 12
  • 14
  • 1

  • 12. 
    HNO2

  • a base
  • a salt
  • an acid
  • an ionic compound

  • 13. 
    Acids react with

  • water to produce bases and salts
  • salts to produce bases and water
  • neither bases, salts nor water
  • bases to produce salts and water

  • 14. 
    What completely ionizes in solution?

  • Weak acids
  • Strong acids
  • Strong Salts
  • Neutral salts
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