Chemistry MCQs Test for Entry Test


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Chemistry MCQs Test for Entry Test

  1. 1. Chemistry mcqs test (1) For Entry TestChemistry Test: 1 Dr. Sajid Ali Talpur
  2. 2. 1. The building block of matter is: a) electron b) atom c) element d) molecule2. 12 kg of carbon represent its: a) 1 mol b) 10 mol c) 100 mol d) 1000 mol3. Which of the following is compound: a) honey b) milk c) water d) A.O.T e) N.O.T4. Urine and blood are studied under the disciplines of_______Chemistry. a) organic b) inorganic c) physical d) bio5. It takes part in the chemical reaction: a) electron b) proton c) neutron d) atom6. NaCl represents one molecule of table salt: a) true b) false7. The exponential notation form of 100.50 is: a) 1 × 10-2 b) 100.50 × 102 2 c) 1005 × 10 d) 100.50 × 10-28. What is the mass of a substance whose density is 4 kg/ dm3 and volume 2 dm3 a) 2 kg b) 4 kg c) 6 kg d) 8 kgChemistry Test: 2 Dr. Sajid Ali Talpur
  3. 3. 9. H+ has: a) one electron b) one proton c) one electron and one proton d) one proton and one neutron e) one electron one proton and one neutron 10. It is a form of energy: I. Light II. SoundIII. sun a) 1 only b) 3 only c) 1 and 2 only d) 2 only 3 only e) 1, 2 and 3 11. Which of the following are equal by mass: a) proton and H+ b) electron and H- c) neutron and H d) A.O.T 12. Regarding the atom all are true except: a) it is neutral b) it is destructible c) its mass lies in nucleus d) isotopes are due to variation in protons e) chemical properties are due to valence electrons 13. Which of the following is the lightest: a) electron b) proton c) neutron d) H atom d) α-paticle Chemistry Test: 3 Dr. Sajid Ali Talpur
  4. 4. Questions 14 – 18Select from the terms below: a) boiling b) evaporation c) sublimation d) melting d) freezing e) N.O.T14. conversion of solid into liquid is called15. conversion of solid into gas16. conversion of gas into solid17. conversion of liquid into solid18. it’s a cooling process19. Which of the following is the heaviest: a) electron b) proton c) neutron d) H atom d) α-paticle20. 100.10 has significant figures: a) 3 b) 4 c) 5 d) 621. 1.9 will be rounded off as: a) 2 b) 2.0 c) 1 d) 2.122. Water has high boiling point due to: a) covalent bond b) ionic bond c) polar bond d) H-bondChemistry Test: 4 Dr. Sajid Ali Talpur
  5. 5. 23. Find the mis match: a) α-particle : proton b) β-particle : electron c) γ-particle : neutron d) α-particle : H atom e) α-particle : He nucleus24. density of water is: a) less than ice b) greater than ice c) equal to ice d) all are possible25. 1kg iron is not denser than 1kg cotton a) true b) false26. Which one has the highest degree of polarity: a) H-Br b) H-I c) H-Cl d) H-F27. Log ab = a) log a + b b) log a –b c) log a /b d) n log a28. NaCl = 58.5 a.m.u; represents its: a) atomic mass b) molecular mass c) formula mass d) molar mass29. What is the molecular formula of a compound whose molecular mass is 28 and empirical formula CH: a) CH4 b) C2H2 c) C2H4 d) C2H6Chemistry Test: 5 Dr. Sajid Ali Talpur
  6. 6. 30. 24g of carbon contain _____atoms of carbon: a) 6.02×1023 b) 2×6.02×1023 23 c) 12×6.02 × 10 d) 24×6.02 × 102331. What is the empirical formula of ethane C2H6 a) CH b) CH2 c) CH3 d) N.O.T32. Limiting reactant determines the amount of product to be formed: a) true b)false33. How many particles are there in 36g of magnesium: a) 6.02 × 1023 b) 9.03 × 1022 c) 90.3 × 1022 d) 12.04 × 102334. The reaction will go forward if product/reactants(initial) is: a) less than Kc b) greater than Kc c) equal to Kc d) All are possible35. What is the activation energy of a reaction whose internal energy is 5 J and threshold energy 12 J a) 5 J b) 7 J c) 17 J d) 60 J36. The equilibrium of the reaction 2NO + O2 ↔ 2NO2 is not affected by: a) increase in temperature b) increase in pressure c) catalyst d) N.O.TChemistry Test: 6 Dr. Sajid Ali Talpur
  7. 7. Questions 37 – 46Select from the terms below:A) Endothermic reaction b) Exothermic reaction37. Respiration is:38. Bomb blast is:39. Decomposition reaction is:40. Photosynthesis is:41. Bond formation is:42. Bond breaking is:43. Freezing is:44. Evaporation is:45. Melting is:46. Combustion is:47. Regarding 2 g of hydrogen gas all are true except: a) contains 6.02 × 1023 molecules b) molecular mass c) one mole d) 22.4dm3 e) N.O.TChemistry Test: 7 Dr. Sajid Ali Talpur
  8. 8. 48. All of the followings show red color in the acidic pH except: a) methyl orange b) litmus c) Phenolphthalein d) universal indicator49. Which of the following solution has high pH a) water + NaCl b) water + NaOH c) water + HCl d) water + milk50. Oxidation number of all the elements in the free state is: a) 0 b) -1 c) + 1 d) -2 Answer Key1 B 2 D 3 C4 D 5 A 6 B7 C 8 D 9 B10 C 11 A 12 D13 A 14 D 15 C16 E 17 D 18 B19 D 20 C 21 A22 D 23 D 24 B25 B 26 D 27 B28 C 29 C 30 B31 C 32 A 33 C34 A 35 B 36 C37 B 38 B 39 A40 A 41 B 42 A43 B 44 A 45 A46 B 47 B 48 C49 B 50 AChemistry Test: 8 Dr. Sajid Ali Talpur
  9. 9. By the same Author: Success tips by Dr. Sajid Ali Talpur Chemistry definitions Physics Definitions Definitions and MCQs on branches of Biology Ninth Class Chemistry MCQs Ninth Class Biology MCQs Scientific Biological Reasons Definitions, Scientific Reasons and MCQs on Chemistry Skeletal muscles Physiology BCQs Chemistry Test: 9 Dr. Sajid Ali Talpur
  10. 10.  Biology MCQs test for entry test Cardiovascular system anatomy quiz Lower limb anatomy quiz Lower limb Anatomy MCQs Spiritual successful life quotations Islamic poetry and quotations (video) Love the Prophet Muhammad (s.a.w) Quotations on the Prophet Muhammad (s.a.w) Chemistry Test: 10 Dr. Sajid Ali Talpur
  11. 11. Chemistry Test: 11 Dr. Sajid Ali Talpur