1) ' The Enthalpy Change When 1 Mole Of A Substance Is Completely Burned In Oxygen Under Standard Conditions' Is this the definition of? a) Standard Enthalpy Change Of Combustion b) Standard Enthalpy Change Of Formation c) Standard Enthalpy Change Of Reaction 2) Which Of These Is Incorrect? Particles Must...... a) Collide With Identical Particles b) Collide With Activation Energy c) Collide At The Right Angle 3) True Or False 'Catalysts Affect The Position Of Equilibrium'? a) True b) False 4) CH2CH2 (g) + H2O (g) <--> CH3CH2OH (g) is an exothermic reaction. What would happen if we increased the temperature? a) More CH3CH2OH is produced b) More CH2CH2 + H2O is produced 5) What Is An Oxidising Agent? a) They Are Electron Donors b) They Are Electron Acceptors 6) What Is The Oxidation State Of An Element? a) 2 b) 4 c) 1 d) 0 7) What Is The Oxidation State Of Sulphur in H2SO4? a) +6 b) -8 c) -6 d) +8 8) True Or False Electronegativity Increases Down Group 7? a) True b) False 9) True Or False Cl2 is a stronger oxidising agent than Br2? a) True b) False 10) Which Halide Ion Forms A Cream Precipitate When Reacted With Silver Nitrate Solution? a) F- b) Cl- c) Br- d) I- 11) Which Precipitates Redissolve In Dilute Ammonia Solution? a) AgCl b) AgBr c) AgI 12) True Or False Melting Point Generally Decreases Down Group 2? a) True b) False 13) True Or False The Solubility Of Group 2 Hydroxides Decreases Down The Group? a) True b) False 14) True Or False The Solubility Of Group 2 Sulfates Increases Down The Group? a) True b) False 15) What Is The Correct Equation For The Reduction Of Iron Oxide Using Carbon Monoxide? a) Fe2O3 (s) + 3CO (g) --> 2Fe (s) + 3CO (g) b) Fe3O3 (s) + 3CO (g) --> 3Fe (s) + 3CO2 c) Fe2O3 (s) + 3CO (g) --> 2Fe (l) + 3CO2 (g) 16) During The Extraction Of Iron, What Substance Is Used To Remove The Impurities In The Iron? a) Silica b) Carbon Dioxide c) Magnesium Oxide d) Calcium Oxide 17) During The Extraction Of Aluminium Which Of These Equations Occurs At The Cathode? a) Al (3+) + 3e- --> Al b) 2O (2-) --> O2 + 4e- 18) .CH3 + Br2 --> CH3Br + .Br Which Step Is This In A Free Radical Substitution Reaction Between Methane And Bromine? a) Initiation Step b) Propagation Step c) Termination Step 19) What Condition Is Needed For Free Radical Substitution To Occur? a) Phosphoric Acid Catalyst b) High Concentration c) High Pressure d) UV Light 20) What is the Solvent that favours elimination reaction? a) Water b) Ethanol 21) In The Hydration Of Ethene What Temperature Is Needed? a) 450 *C b) 300 *C c) 350 *C d) 400 *C 22) If Tollens' Reagent is added to a ketone, then what is observed? a) No Visible Change b) Silver Mirror Forms c) Brick Red Precipitate Forms

Chem 2 Quiz

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