Quiz  /  Titration Class 12 MCQ Questions With Answers

  • 1. 
    Determine the mass of phenolphthalein required to prepare 3.2% phenolphthalein solution

  • 3.2 g
  • 3.2 kg
  • 0.32 g
  • 32 2

  • 2. 
    Choose the definition for base according to Bronsted-Lowry

  • a compound that donates electron
  • a compound grieves at the lost of electrons
  • a compound that accepts electron

  • 3. 
    The indicator used in Mohr's method is

  • 0.2% potassium dichromate, K2CrO7
  • 2% potassium dichromate, K2CrO7
  • 0.02% potassium dichromate, K2CrO7
  • 25 sodium dichromate, K2CrO7

  • 4. 
    Using n = MV, calculate the mass of sodium phthalate required to prepare 1.2 L of 1.78 M solution. Given MM of sodium phthalate is 226 g/mol.

  • 483 g
  • 48.3 g
  • 500 g

  • 5. 
    In precipitation titration, the silver atom will form an insoluble salt. What is the colour of the salt?

  • yellow
  • green
  • red
  • white

  • 6. 
    Define the oxidation process

  • the process of gaining electrons
  • the process of losing electrons
  • the process of sharing electrons
  • the process of hoarding electrons

  • 7. 
    Water can behave as both acid and base. What is the term used to define this behaviour?

  • amphiprotic
  • amprotic
  • protongenic
  • protophilic

  • 8. 
    N = cv , where n is

  • the amount in mole
  • concentration in mol/L
  • volume in L
  • volume in ml

  • 9. 
    Phenolphthalein is colourless in

  • acid
  • base
  • burette
  • a liquid

  • 10. 
    Answers to concentration should be given to

  • 2 decimal points
  • 3 decimal points
  • 2 significant figure
  • 3 significant figures

  • 11. 
    0.2452 to 3 sig. fig. is

  • 0.24
  • 0.25
  • 0.245
  • 0.246

  • 12. 
    Final volume (ml) - initial volume (ml) =

  • titre
  • volume of solution
  • burette reading
  • pipette reading

  • 13. 
    The measured volume delivered by the pipette is called

  • acid
  • aliquot
  • burette reading
  • titre

  • 14. 
    What mass of KHP will be completely neutrilized by 32.57 ml 0.175 M standard NaOH solution? The Molar Mass of KPH is 204.22 g/mol.

  • 23.28 g KHP
  • 1.164 g KHP
  • 11.64 g KHP
  • 2.328 g KHP

  • 15. 
    The reaction of sulfuric acid (H2SO4) with Sodium hydroxide (NaOH) is described by the equation:H2SO4 + 2NaOH → Na2SO4 + 2H2OSuppose 50 mL of NaOH with unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.20 M H2SO4 is dripped into the NaOH solution. After exactly 25.0 mL of H2SO4 is added, the indicator changes from blue to yellow. What is the concentration of the KOH?

  • 0.20M
  • 4.0M
  • 2.5M
  • 0.4M

  • 16. 
    The reaction of perchloric acid (HClO4) with lithium hydroxide (KOH) is described by the equationHClO4 + KOH → KClO4 + H2OSuppose 100 mL of perchloric acid is neutralized by exactly 50,0 mL of 1.0 M of Potassium hydroxide. What is the concentration of the perchloric acid?

  • 0.5M
  • 50M
  • 2.0M
  • 1.0M

  • 17. 
    30cm3 of NaOH is neutralised by 12.3cm3 of 0.2mol/l HCl. What is the concentration of the NaOH.

  • 82 mol/l
  • 0.82 mol/l
  • 0.49 mol/l
  • 0.082 mol/l

  • 18. 
    What is this piece of apparatus called

  • Pipette
  • Burette
  • Janette
  • Cuvette

  • 19. 
    What is the average titre needed for neutralisation?

  • 25.2cm3
  • 59.7cm3
  • 25.0cm3
  • 25.4cm3

  • 20. 
    Calculate the volume of a 0.15 M Ba(OH)2 solution required to completely neutralize 45 ml of a 0.29 M HNO3 solution.

  • 43.5 ml
  • 87 ml
  • 23.3 ml
  • 51.9 ml

  • 21. 
    N = cv , where c is

  • the amount in mole
  • concentration in mol/L
  • volume in L
  • volume in ml

  • 22. 
    Titre is the volume of liquid that is

  • transferred in the conical flask via pipette
  • delivered out of the burette after a titration
  • left in the burette after a titration
  • the average of the results

  • 23. 
    If it takes 50 mL of 0.5 M Ca(OH)2 to neutralize 125 mL of sulfuric acid, what is the concentration of the acid?

  • 0.2 M
  • 5 M
  • 0.5 M

  • 24. 
    What is the molarity of a NaOH solution if 11.6 mL of 3 M HCl was used to neutralize 25 mL of NaOH?

  • 1.392 M
  • 0.155 M
  • 0.718 M

  • 25. 
    How many milliliters of 0.360 M H2SO4 are required to neutralize 25 mL of 0.1 M Ba(OH)2?

  • 6.944 mL
  • 0.144 mL
  • 0.069 mL

  • 26. 
    Calculate the average volume of acid needed for this neutralisation

  • 15.2cm3
  • 15.0cm3
  • 35.5cm3
  • 30.1cm3

  • 27. 
    Which of these titres are concordant?

  • 12.3cm3
  • 12.0cm3
  • Both A & B
  • 12.4cm3

  • 28. 
    To read a pipette or burette, read to the bottom of the

  • meniscus
  • mark
  • solution
  • none of the above
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