BSN Session 01 Test System Cool Education Nursing Academy Cool Education Forces Academy Test System AFNS Chemistry Test 01 0% AFNS Chemistry Test 1 Enter Password Enter Name 1 / 40 1. What type of bond is formed by sharing electrons? Ionic bond Covalent bond Hydrogen bond Metallic bond 2 / 40 2. DNA stands for? Dynamic Nucleic Acid Dextrose Nucleic Acid Deoxyribonucleic Acid Dihydro Nucleic Acid 3 / 40 3. Which subatomic particle defines the atomic number? Electron Neutron Proton Positron 4 / 40 4. Enzymes are? Structural proteins Biological catalysts Lipids Hormones only 5 / 40 5. Lone pairs affect molecular? Mass Shape Size Charge 6 / 40 6. What is a buffer? Enhances pH Resists pH change Reduces acid Removes salt 7 / 40 7. Anode is the site of? Reduction Neutralization Oxidation Electron gain 8 / 40 8. Proteins are made of? Glucose Amino acids Lipids Nucleotides 9 / 40 9. Functional group in alcohol is? -COOH -OH -NHâ‚‚ -CHO 10 / 40 10. Bohr’s model explained which atom correctly? Helium Carbon Oxygen Hydrogen 11 / 40 11. What is the maximum number of electrons in p orbital? 2 4 6 8 12 / 40 12. Soap is made by? Sublimation Fermentation Saponification Electrolysis 13 / 40 13. Fermentation produces? Protein Alcohol Oxygen Acid 14 / 40 14. Which gas causes global warming? Nitrogen Hydrogen Carbon dioxide Oxygen 15 / 40 15. Which factor increases gas pressure? Increasing volume Increasing temperature Decreasing volume Adding catalyst 16 / 40 16. Which law relates mass and volume of gases? Boyle’s Law Charles’s Law Avogadro’s Law Newton’s Law 17 / 40 17. CFCs damage? Water Soil Ozone layer Forests 18 / 40 18. What is a redox reaction? Only oxidation Only reduction Both oxidation and reduction Combustion only 19 / 40 19. Empirical formula represents? Exact number of atoms Simplest whole number ratio Molecular weight Number of molecules 20 / 40 20. 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 21 / 40 21. Which element has the highest electronegativity? Oxygen Chlorine Fluorine Nitrogen 22 / 40 22. Alkanes are? Unsaturated hydrocarbons Saturated hydrocarbons Aromatic compounds Esters 23 / 40 23. What is the SI unit of amount of substance? Kilogram Liter Mole Newton 24 / 40 24. Lipids are? Sugars Proteins Fats and oils Minerals 25 / 40 25. Molarity is? Mass per liter Moles per liter of solution Volume per mole Mole fraction 26 / 40 26. Which factor increases solubility? Decrease in temperature Stirring Increase in temperature Removing solvent 27 / 40 27. Activation energy is? Minimum energy to stop reaction Minimum energy to start reaction Average energy Total energy 28 / 40 28. One mole of any gas at STP occupies? 24 L 22.4 L 20 L 18.4 L 29 / 40 29. Main cause of smog? Fertilizer use Vehicle emissions Acid rain Pesticides 30 / 40 30. What is hybridization? Splitting of atoms Mixing of atomic orbitals Breaking of bonds Gas diffusion 31 / 40 31. What is the relative mass of an electron? 1/836 1/1836 1 1836 32 / 40 32. What is molality? Moles per liter Moles per kg of solvent Moles per molecule Mass per liter 33 / 40 33. What is pOH? Measure of H+ Measure of OH– Measure of buffer Measure of salt 34 / 40 34. Litmus turns red in? Base Neutral Acid Salt 35 / 40 35. Ozone layer protects from? a) X-rays b) UV radiation Infrared rays Gamma rays 36 / 40 36. Galvanic cell produces? Heat Electrical energy Light Sound 37 / 40 37. What is the ideal gas equation? PV=nRT E=mc² F=ma Q=mcΔT 38 / 40 38. Strong acid example? Acetic acid Ammonia Hydrochloric acid Carbonic acid 39 / 40 39. Charles’s law relates volume and? Temperature Pressure Mass Density 40 / 40 40. Catalyst does what? Slows reaction Has no effect Increases reaction rate Changes product Your score is To Open This Test You Need to Join Our Online Paid Test Session.Â
