Home Chemistry Elements of Biological importance Test Online Mcqs Preparation 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. Inorganic compound of nitrogen are not commonly found as minerals becauseA. It is present in air as major constituentB. Its minerals are unstableC. None of the aboveD. Nitrogen is an inert elementQuestion 1 of 15 Loading... Question 2 of 15 2. The catalyst V2O5 used in contact process is employed during:A. Absorbing sulfuric acid in waterB. Burning molten sulfur with airC. Oxidizing SO2 to SO3D. None of the aboveQuestion 2 of 15 Loading... Question 3 of 15 3. Which of the following fertilizer provides to soil 75% neutrientsA. Pottasium nitrateB. Calcium superphosphateC. UreaD. Diammonium phosphateQuestion 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. Final step in the nitric acid production is:A. None of the aboveB. Absorption of NO in waterC. Absorption of NO2 in waterD. Absorption of HNO3 in waterQuestion 5 of 15 Loading... Question 6 of 15 6. Which one of the following statement is correct for urea?A. It is a natural fertilizerB. It is an inorganic water soluble compoundC. It is a synthetic fertilizerD. None of theseQuestion 6 of 15 Loading... Question 7 of 15 7. Which one is the most important use of nitric acid?A. Manufacturing of fertilizersB. Manufacture of explosivesC. Nylon manufactureD. All of the aboveQuestion 7 of 15 Loading... Question 8 of 15 8. Nitrates from fertilizers used on farmland can cause pollution. Why do nitrates pollute rivers:A. Nitrate ions are negatively chargedB. Nitrates are saltsC. Nitrates are very soluble in waterD. Nitrates contains oxygenQuestion 8 of 15 Loading... Question 9 of 15 9. The manufacturing of nitrogenous fertilizer’s from ammonia is the result of:A. Addition ReactionB. Acid-base reactionC. Substitution ReactionD. Decomposition reactionQuestion 9 of 15 Loading... Question 10 of 15 10. Maximum ammonia is used for theA. Explosive formationB. Manufacturing of NylonC. Manufacturing of fertilizerD. Fertilizer itselfQuestion 10 of 15 Loading... Question 11 of 15 11. When we mix SO3 with conc. H2SO4 in contact process, the product obtained is:A. Carbonic acidB. Sulphuric acidC. HNO3D. Pyrosulphuric acidQuestion 11 of 15 Loading... Question 12 of 15 12. In Harber’s process maximum ammonia can be achieved by reducing temperature, but on contrary we maintain high temperature of 400°C becauseA. At low temperature of reaction cannot be controlledB. Rate of reaction is slow at low temperatureC. Reaction is stopped at low temperatureD. The amount of products is less at low temperatureQuestion 12 of 15 Loading... Question 13 of 15 13. The nitrogen present in some fertilizers helps plants:A. To produce fatsB. To fight against diseasesC. To produce sugarsD. To produce proteinsQuestion 13 of 15 Loading... Question 14 of 15 14. The steps involved in the manufacture of HNO3:A. All of the aboveB. Combusting N2 with O2 to NOC. Absorption of NO2 in H2OD. Oxidation of NO to NO2 at 600°CQuestion 14 of 15 Loading... Question 15 of 15 15. Which of the following step is not involved in NH4NO3 manufacturingA. DehydrationB. Neutralization of HNO3 with NH3C. EvaporationD. PrillingQuestion 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 McqsLecturer Test KPPSC Preparation Mcqs OnlineTESCO Jobs Online NTS Test Preparation McqsFIA ASI Sub Inspectors Job 2024 OTS Test Preparation…SPSC SST Test Preparation Mcqs Online with Syllabus