MDCAT Chemistry

Conceptual MCQs of Chemistry For MDCAT 2021

Conceptual mcqs of Chemistry for mdcat preparation. Online mdcat chemistry mcqs. mcat practice test chapter wise chemistry.

Conceptual MCQs of Chemistry

  1. Buffer action can be explained by:
    a Common ion effect
    b Law of mass action
    c Le-Chatelier’s principle
    d All of the above
  2. The pH of 10-3mole dm-3 of an aqueous solution of H2So4 is
    a 3.0
    b 2.7
    c 2.0
    d 1.5
  3. Law of mass action was presented by
    a Henderson
    b Lewis
    c Guldberg and wage
    d Arrhenius
  4. If Kc is very mall then the product formed is in:
    a Going in the forward direction
    b Going in the backward direction
    c Is in equilibrium state
    d None
  5. If we increased the pressure in decomposition PCl5 will favours the reaction
    a Forward direction
    b Backward direction
    c Equilibrium direction
    d None
  6. Which reaction will proceed in backward direction
    a Kc = 10
    b Kc = 10-2
    c Kc = 10-3
    d Kc = 10-1
  7. Ka > 10-3 favours
    a Very strong acid
    b Very weak acid
    c Very weak base
    d Very strong salt
  8. The pH of the rain water is
    a 6.5
    b 6.4
    c 6.2
    d 6.0
  9. Factor which determine Buffer capacity of a buffer solution
    a pH of solution
    b Molarities of its components
    c pOH of solution
    d None of these
  10. pH of a buffer containing 1M CH3COONa and 0.1M CH3COOH is
    a 3.76
    b 5.76
    c 4.76
    d 2.76
  11. The units of mole fraction, when consider the partial pressures of the gases
    a Torr
    b atm
    c Nm-2
    d No units
  12. The molarity of NaOH solution is 2M, what is the mass of solute in 500cm3 of solution
    a 40gm
    b 20gm
    c 80gm
    d 400gm
  13. Opal is an example of solution
    a Liquid in solid
    b Solid in liquid
    c Solid in solid
    d All are possible
  14. Which of the following is not an example of liquid in solid
    a Buffer
    b Paint
    c Cheese
    d Mercury in silver
  15. Sucrose is an organic compound, it readily dissolve in
    a benzene
    b water
    c kerosene oil
    d both a, c
  16. Ether dissolves water to an extent of about
    a 6.5%
    b 1.2%
    c 5%
    d 30%
  17. The molality of 2% w/w solution of NaOH solution is
    a 0.5
    b 0.05
    c 0.25
    d 2.5
  18. H2SO4 is 98% w/w and its density is 1.84gcm-3 the molarity of the solution is
    a 17
    b 18
    c 15.9
    d 11.73
  19. Which of the following terms of concentration is independent of temperature
    a Molality
    b Mole fraction
    c Molarity
    d Both a, b
  20. The molal boiling point constant is the ratio of the elevation in boiling point ot
    a Molarity
    b Molality
    c Mole fraction of solvent
    d Mole fraction of the solute
  21. Solution of the which salt is acidic in nature
    a NaCl
    b Na2SO4
    c NH4Cl
    d CH3COONa
  22. What is mass of urea in 100g of water in 0.3 molal solution
    a 1-60g
    b 1.8g
    c 18g
    d None of these
  23. Which of the following pairs give a no ideal solution
    a Benzene & toluene
    b Chlorobenzene & bromobenzene
    c Benzene and ether
    d All of these are ideal
  24. The volume of a solution is less than that of the components it is showing
    a Ideal behavior
    b Positive deviation
    c Negative deviation
    d None of these
  25. The Beckmann’s thermometer can read upto
    a 0.01K
    b 0.001K
    c 0.1K
    d 1K

Helpful Resources for MDCAT Chemistry

You may also like to download mdcat chemistry conceptual multiple choice questions book in pdf. To download book click here. You can also download mdcat Biology solved mcqs from here.

Leave a Comment