MDCAT Past Paper 2022

MDCAT Past Paper 2022 Part 2 Chemistry MCQs

66

MDCAT Past Paper 2022 Part 2 Chemistry Question with Answer

1. One a. m.u stands for
a.
b.
c.
d.

Question 1 of 54

2. A compound of sodium oxide has 74.2% sodium and 25.8% of Oxygen. The empirical formula of the compound is?
a.
b.
c.
d.

Question 2 of 54

3. 30 grams of 2-propanol were mixed with excess acidified K2Cr207 and boiled under reflux for 20 minutes. The organic product was then collected by distillation. The yield of product was 75.0%. What is the mass of product produced?
a.
b.
c.
d.

Question 3 of 54

4. According to which scientist, the probability of finding an electron at a certain position is possible?
a.
b.
c.
d.

Question 4 of 54

5. Which gas in the discharge tube produces lightest canal ray particles?
a.
b.
c.
d.

Question 5 of 54

6. Which element has the ground state electronic configuration of 1s2, 2s2, 2p6, 3s2, 3p6?
a.
b.
c.
d.

Question 6 of 54

7. What is the proton (atomic number) of an element that has four unpaired electrons in its ground state?
a.
b.
c.
d.

Question 7 of 54

8. A gaseous mixture contains 9.6% NH3, 22.6% Na and 67.8% Ha gases. If the total pressure is 50 atm, then the partial pressure of Ha is
a.
b.
c.
d.

Question 8 of 54

9. If we want to raise the temperature of one mole of an ideal gas by one kelvin, we have to provide how much amount of energy?
a.
b.
c.
d.

Question 9 of 54

10. The process of heat flow between hotter and colder gases remains continued until all the molecules have equal
a.
b.
c.
d.

Question 10 of 54

11. In liquid, with the change in dipole-dipole forces, there is a change in some physical properties. Select the property which is not affected by the strength of dipole-dipole forces?
a.
b.
c.
d.

Question 11 of 54

12. Which of the following factor does not affect the magnitude of vapor pressure?
a.
b.
c.
d.

Question 12 of 54

13. A small building block which belongs to whole information about crystal structure is called?
a.
b.
c.
d.

Question 13 of 54

14. Which type of solid is called as atomic solid?
a.
b.
c.
d.

Question 14 of 54

15. The decrease in solubility of the salt in a solution that already contains an ion common to that salt is known as:
a.
b.
c.
d.

Question 15 of 54

16. The precipitation occurs if the ionic concentration is:
a.
b.
c.
d.

Question 16 of 54

17. One can estimate the direction in which equilibrium will shift with the help of:
Le Chatelier's principle
a.
b.
c.
d.

Question 17 of 54

18. What is the overall order of this rate equation? Rate = k[H2] [NO2]2
a.
b.
c.
d.

Question 18 of 54

19. The catalysis in which the catalyst and the reactants are in the same phase is known?
a.
b.
c.
d.

Question 19 of 54

20. Born-Haber cycle is used to determine the Lattice energy of ionic compounds. It is the application of
a.
b.
c.
d.

Question 20 of 54

21. Which of the following term is state function?
a.
b.
c.
d.

Question 21 of 54

22. An electrochemical cell is based upon which reaction?
a.
b.
c.
d.

Question 22 of 54

23. In which of the following, oxygen shows fractional oxidation number?
a.
b.
c.
d.

Question 23 of 54

24. Which of the following element has smaller size?
a.
b.
c.
d.

Question 24 of 54

25. Among LiCI, BeCl2, NaCl, CsCl, the compounds with the greatest and the least ionic character respectively are:
a.
b.
c.
d.

Question 25 of 54

26. Which statement describes the conversion of magnesium atoms to magnesium ions for lonic bond formation with chlorine?
a.
b.
c.
d.

Question 26 of 54

27. AB4 Type with no Lone Pairs geometry enables to form which shape of molecule?
a.
b.
c.
d.

Question 27 of 54

28. Why dimer of Aluminum chloride is formed
a.
b.
c.
d.

Question 28 of 54

29. Which group of the periodic table contain non-metals, metalloids and metals.
a.
b.
c.
d.

Question 29 of 54

30. Which of the following sulfate compound is insoluble in water?
a.
b.
c.
d.

Question 30 of 54

31. Which of the following complex show a tetrahedral geometry?
a.
b.
c.
d.

Question 31 of 54

32. In which pair one has all Unpaired d orbitals while other have all paired d orbitals ?
a.
b.
c.
d.

Question 32 of 54

33. In which of the following functional groups, the carbon atom is sp hybridized?
a.
b.
c.
d.

Question 33 of 54

34. The compounds containing R-SH functional group are known as:
a.
b.
c.
d.

Question 34 of 54

35. What is the number of isomers of a hydrocarbon having a molecular formula, C+Ha?
a.
b.
c.
d.

Question 35 of 54

36. Alkylbenzene is formed when benzene is treated with an alkyl halide in the presence of anhydrous aluminum chloride. Identify the type of reaction.
a.
b.
c.
d.

Question 36 of 54

37. Three alternate single and double bonds in benzene are called?
a.
b.
c.
d.

Question 37 of 54

38. Which of the following compound is more acidic?
a.
b.
c.
d.

Question 38 of 54

39. Consider the chlorination of methane, the attack of chlorine free radical on methane form methyl free radical occurs in ?
a.
b.
c.
d.

Question 39 of 54

40. The ratio of sigma to pi electrons in benzene is?
a.
b.
c.
d.

Question 40 of 54

41. When halogen is removed from an alkyl halide a carbocation is formed, identify the most reactive carbocation
a.
b.
c.
d.

Question 41 of 54

42. Freon is commonly known as ?
a.
b.
c.
d.

Question 42 of 54

43. Neopentylchloride belongs to which class of alkyl halides?
a.
b.
c.
d.

Question 43 of 54

44. What is the common name of 1,2,3-propanetriol?
a.
b.
c.
d.

Question 44 of 54

45. Benzene is formed when Na reacts with which of the following?
a.
b.
c.
d.

Question 45 of 54

46. When Phenol reacts with formaldehyde, which of the following product is produced?
a.
b.
c.
d.

Question 46 of 54

47. Which of the following is the correct name of CH3CH2CH2COCH2CHO?
a.
b.
c.
d.

Question 47 of 54

48. Which is the most suitable reagent for the conversion of R-CH2OH RCHO?
a.
b.
c.
d.

Question 48 of 54

49. Which of the following is also called silver mirror test?
a.
b.
c.
d.

Question 49 of 54

50. Which among the following have least pH?
a.
b.
c.
d.

Question 50 of 54

51. If carboxylic acid and ketone groups C=O are present in a chain then final name will be given as
a.
b.
c.
d.

Question 51 of 54

52. When carboxylic acids and dicarboxylic acids have similar molecular weights, how do their melting points compare?
a.
b.
c.
d.

Question 52 of 54

53. When food reaches stomach, the action of which of the following come to an end due to acidic PH?
a.
b.
c.
d.

Question 53 of 54

54. Which of the following proteins acts as carrier of copper in blood plasma?
a.
b.
c.
d.

Question 54 of 54


 

Part 3 Physics Question with Answer

66
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