BSN Session 02 Test System Cool Education Nursing Academy Cool Education Forces Academy AFNS Chemistry Test 0% AFNS Chemistry Test 1 Enter Password Enter Name 1 / 40 1. Activation energy is? Minimum energy to stop reaction Minimum energy to start reaction Average energy Total energy 2 / 40 2. Lipids are? Sugars Proteins Fats and oils Minerals 3 / 40 3. What is molality? Moles per liter Moles per kg of solvent Moles per molecule Mass per liter 4 / 40 4. One mole of any gas at STP occupies? 24 L 22.4 L 20 L 18.4 L 5 / 40 5. What is pOH? Measure of H+ Measure of OH– Measure of buffer Measure of salt 6 / 40 6. Catalyst does what? Slows reaction Has no effect Increases reaction rate Changes product 7 / 40 7. Charles’s law relates volume and? Temperature Pressure Mass Density 8 / 40 8. Bohr’s model explained which atom correctly? Helium Carbon Oxygen Hydrogen 9 / 40 9. Which factor increases gas pressure? Increasing volume Increasing temperature Decreasing volume Adding catalyst 10 / 40 10. Which factor increases solubility? Decrease in temperature Stirring Increase in temperature Removing solvent 11 / 40 11. Litmus turns red in? Base Neutral Acid Salt 12 / 40 12. Main cause of smog? Fertilizer use Vehicle emissions Acid rain Pesticides 13 / 40 13. What is hybridization? Splitting of atoms Mixing of atomic orbitals Breaking of bonds Gas diffusion 14 / 40 14. Strong acid example? Acetic acid Ammonia Hydrochloric acid Carbonic acid 15 / 40 15. Anode is the site of? Reduction Neutralization Oxidation Electron gain 16 / 40 16. Which element has the highest electronegativity? Oxygen Chlorine Fluorine Nitrogen 17 / 40 17. Molarity is? Mass per liter Moles per liter of solution Volume per mole Mole fraction 18 / 40 18. Ozone layer protects from? a) X-rays b) UV radiation Infrared rays Gamma rays 19 / 40 19. What type of bond is formed by sharing electrons? Ionic bond Covalent bond Hydrogen bond Metallic bond 20 / 40 20. Which subatomic particle defines the atomic number? Electron Neutron Proton Positron 21 / 40 21. What is a buffer? Enhances pH Resists pH change Reduces acid Removes salt 22 / 40 22. What is the maximum number of electrons in p orbital? 2 4 6 8 23 / 40 23. Empirical formula represents? Exact number of atoms Simplest whole number ratio Molecular weight Number of molecules 24 / 40 24. Alkanes are? Unsaturated hydrocarbons Saturated hydrocarbons Aromatic compounds Esters 25 / 40 25. CFCs damage? Water Soil Ozone layer Forests 26 / 40 26. Which law relates mass and volume of gases? Boyle’s Law Charles’s Law Avogadro’s Law Newton’s Law 27 / 40 27. What is the value of R in gas laws? 0.0821 atm·L/mol·K 8.314 J/mol·K 1.0 atm·L 22.4 L 28 / 40 28. Fermentation produces? Protein Alcohol Oxygen Acid 29 / 40 29. Galvanic cell produces? Heat Electrical energy Light Sound 30 / 40 30. What is the ideal gas equation? PV=nRT E=mc² F=ma Q=mcΔT 31 / 40 31. DNA stands for? Dynamic Nucleic Acid Dextrose Nucleic Acid Deoxyribonucleic Acid Dihydro Nucleic Acid 32 / 40 32. Enzymes are? Structural proteins Biological catalysts Lipids Hormones only 33 / 40 33. Proteins are made of? Glucose Amino acids Lipids Nucleotides 34 / 40 34. Functional group in alcohol is? -COOH -OH -NHâ‚‚ -CHO 35 / 40 35. Soap is made by? Sublimation Fermentation Saponification Electrolysis 36 / 40 36. Lone pairs affect molecular? Mass Shape Size Charge 37 / 40 37. What is a redox reaction? Only oxidation Only reduction Both oxidation and reduction Combustion only 38 / 40 38. What is the relative mass of an electron? 1/836 1/1836 1 1836 39 / 40 39. What is the SI unit of amount of substance? Kilogram Liter Mole Newton 40 / 40 40. Which gas causes global warming? Nitrogen Hydrogen Carbon dioxide Oxygen Your score is To Open This Test You Need to Join Our Online Paid Test Session.Â
