ECAT Chemistry Test 2 Online Preparation Mcqs ECAT Chemistry Test 2 Online Preparation Mcqs With Answers Start Below 123456789101112131415Show paginator Hide paginator 7% Question 1 of 15 1. Source of organic compounds primarily is: A. A & BB. Plants C. Animals D. Minerals Question 1 of 15 Loading... Question 2 of 15 2. Smallest particle of an element which may or may not have independent existence is known as: A. A molecule B. An ion C. An atom D. An electronQuestion 2 of 15 Loading... Question 3 of 15 3. Geological survey of Pakistan estimates about billion tons of coal in Pakistan: A. 182 B. 185C. 183 D. 184 Question 3 of 15 Loading... Question 4 of 15 4. The distribution of energies among the molecules of gases was studied by: A. BoltzmannB. Maxwell C. Coulomb D. Newton Question 4 of 15 Loading... Question 5 of 15 5. Which pair of mixture is called ideal solution? A. Nicotine – water B. Water ether C. Chlorobenzene and bromobenzeneD. Water – alcohol Question 5 of 15 Loading... Question 6 of 15 6. Sulphuric acid is used as: A. Dehydrating agent B. All of aboveC. Fertilizers D. Oxidizing agent Question 6 of 15 Loading... Question 7 of 15 7. As compared to molar solution, in the molal solution the quantity of solvent is: A. Comparatively greater B. Very largeC. Comparatively lesser D. More or less equal Question 7 of 15 Loading... Question 8 of 15 8. The most reactive elements are: A. Group VI – A B. Group V – A C. Group IV – A D. Group VII – AQuestion 8 of 15 Loading... Question 9 of 15 9. Isotopes of an element are recorded separately in: A. Mass spectrometer B. Calorimeter C. Mass spectrophotometer D. Mass meterQuestion 9 of 15 Loading... Question 10 of 15 10. The theory of chemical bonding has been a major problem of: A. Modern biology B. Modern chemistry C. MechanicsD. Modern physics Question 10 of 15 Loading... Question 11 of 15 11. Percentage of oxygen in H₂O is: A. 80.5% B. 88.88% C. 33.33% D. 75%Question 11 of 15 Loading... Question 12 of 15 12. Lime is often used as an agent: A. Oxidizing B. Hydrating C. ReducingD. Dehydrating Question 12 of 15 Loading... Question 13 of 15 13. Which has a completer valence shell? A. FB. N C. O D. Ne Question 13 of 15 Loading... Question 14 of 15 14. Benzene was discovered by first of all: A. Anderson B. SorenbonC. Hofman D. Micheal Faraday Question 14 of 15 Loading... Question 15 of 15 15. The conversion of n-hexane into benzene by heating in the presence of Cr₂O₃, is called: A. Isomerization B. Dealkylation C. Aromtization D. RearrangementQuestion 15 of 15 Loading... Loading... Related Study Posts:Online ECAT Test Preparation McqsMDCAT Test Chemistry Test Online PreparationKIPS Entry Test Preparation 2025 Online MDCAT ECAT NUSTBest Book for ECAT Entry Test Preparation BooksASF Written Test Preparation Online McqsFPSC SST Test Preparation Mcqs OnlinePPSC Lecturer Test Preparation Online McqsLecturer Test KPPSC Preparation Mcqs OnlineSPSC SST Test Preparation Mcqs Online with SyllabusFPSC Test Preparation Mcqs Online Subject Wise