Chemistry Elements of Biological importance Test Online Mcqs Preparation Chemistry Elements of Biological importance Test Online Mcqs Preparation With Answers Start Below 123456789101112131415Show paginator Hide paginator 7% Question 1 of 15 1. Nitrates from fertilizers used on farmland can cause pollution. Why do nitrates pollute rivers:A. Nitrates contains oxygenB. Nitrates are very soluble in waterC. Nitrate ions are negatively chargedD. Nitrates are saltsQuestion 1 of 15 Loading... Question 2 of 15 2. Which of the following occurs in Contact process:A. SO3 is dissolved in waterB. Sulfur trioxide is dissolved in conc. Sulfuric acidC. Sulfur trioxide is dissolved in dil. Sulfuric acidD. SO2 is dissolved in waterQuestion 2 of 15 Loading... Question 3 of 15 3. In contact process SO3 manufacturing is favour at low temperature but in actual practice the reaction is carried out at 400-600°C the reason is that:A. At high temperature reaction will be fastB. Equilibrium will established laterC. Separation is easy at high temperatureD. Rate of forward reaction is lowQuestion 3 of 15 Loading... Question 4 of 15 4. Sulphuric acid is king of chemicals, in its reactions it generally not act asA. An acidB. Dehydrating agentC. Oxidizing agentD. A reducing agentQuestion 4 of 15 Loading... Question 5 of 15 5. Acid rainA. Results in loss of flora and faunaB. Retards the growth of treesC. Effects big marble constructionsD. All of theseQuestion 5 of 15 Loading... Question 6 of 15 6. Inorganic compound of nitrogen are not commonly found as minerals becauseA. Its minerals are unstableB. It is present in air as major constituentC. None of the aboveD. Nitrogen is an inert elementQuestion 6 of 15 Loading... Question 7 of 15 7. Sulfuric acid is not prepared by dissolving SO3 in water because:A. It forms oleum instead of sulfuric acidB. It doesn’t dissolve in waterC. The reaction is too exothermic and difficult to controlD. None of the aboveQuestion 7 of 15 Loading... Question 8 of 15 8. Which of the following step is not involved in NH4NO3 manufacturingA. DehydrationB. PrillingC. Neutralization of HNO3 with NH3D. EvaporationQuestion 8 of 15 Loading... Question 9 of 15 9. Nitric acid is prepared commercially by:A. Contact processB. Wurtz-Fitting synthesisC. Haber’s processD. Brikeland and Eyde’s processQuestion 9 of 15 Loading... Question 10 of 15 10. When we mix SO3 with conc. H2SO4 in contact process, the product obtained is:A. Pyrosulphuric acidB. HNO3C. Sulphuric acidD. Carbonic acidQuestion 10 of 15 Loading... Question 11 of 15 11. Oleum is prepared by:A. Absorbing SO3 into waterB. Absorbing SO2 into sulfuric acidC. Absorbing SO3 into sulfuric acidD. Absorbing SO2 into waterQuestion 11 of 15 Loading... Question 12 of 15 12. The steps involved in the manufacture of HNO3:A. All of the aboveB. Combusting N2 with O2 to NOC. Oxidation of NO to NO2 at 600°CD. Absorption of NO2 in H2OQuestion 12 of 15 Loading... Question 13 of 15 13. Maximum ammonia is used for theA. Fertilizer itselfB. Explosive formationC. Manufacturing of NylonD. Manufacturing of fertilizerQuestion 13 of 15 Loading... Question 14 of 15 14. The catalyst V2O5 used in contact process is employed during:A. None of the aboveB. Burning molten sulfur with airC. Absorbing sulfuric acid in waterD. Oxidizing SO2 to SO3Question 14 of 15 Loading... Question 15 of 15 15. The contact process was first developed by:A. HenaryB. KnietschC. BirkelandD. Jabir bin hayyanQuestion 15 of 15 Loading... Loading... Related Study Posts:MDCAT Test Chemistry Test Online PreparationImportance of Perseverance in StudyASF Written Test Preparation Online McqsOnline ECAT Test Preparation McqsFPSC SST Test Preparation Mcqs OnlinePPSC Lecturer Test Preparation Online McqsTESCO Jobs Online NTS Test Preparation McqsLecturer Test KPPSC Preparation Mcqs OnlineFIA ASI Sub Inspectors Job 2025 OTS Test Preparation…SPSC SST Test Preparation Mcqs Online with Syllabus