Question

QUESTION 4 AD + BC? What basic type of reaction is illustrated by the general equation AB + CD a. Decomposition b. Exchange O c. Single-replacement Od. Combination QUESTION 5 Which of the following statements concerning redox reactions is incorrect? a. The oxidizing agent loses electrons. b. The substance oxidized loses electrons. c. The oxidizing agent is the substance reduced. d. The reducing agent is the substance oxidized. QUESTION 6 Which of the following will influence all reaction rates? a. the presence of catalysts b. the temperature of reactants c. the concentration of reactants d. more than one response is correct

Answer 1

- Q.4 AB+CD AD + BC 6 This is a Exchange reaction 8.5 @ The oxidizing agent loses electrons. The oxidizing agent is the substance reduced means et gains elections from other species and makes other species to lose elections. Q.6 @ more than one response is correct. All the three options a, bande are correct. Catalysts deacreases Activation energy of reaction and hence increase rate. (6) Increase in temperature will raise the average K E of the reactant molecules. Therefore a greater prooktion of molecule will have the minimum energy necessary for an effective collisions. 6 Increase in temples. Therefore agreenergy necessary

O Increasing the concentration of reactants generally micreases rate a reaction because more of the reacting molecules or wns are present to form the reaction products