Chemistry Fsc Part 1 Chapter 7 Online Test With Answers

Chemistry Fsc Part 1 Chapter 7 Online Test

Sr. # Questions Answers Choice
1 Rate = k [A] ; defines Stoichiometry Reaction order Reaction mechanism Titration
2 Rate law is an expression involving. Concentration Pressure Temperature Catalyst
3 Higher pressur eincreases rate for Solids Gases Liquids All phases
4 Which increases with rise in temperature? Activation energy Enthalpy Collision frequency Molecular weight
5 In a chemical reaction, a catalyst. Alters Delta H Lowers activation energy Is consumed Forms product
6 Effect of temperature on rate is  Negligible Linear Exponential Logarithmic
7 Increase in surface area Increases rate Decreases rate No effect Stops reaction
8 Which factor affects rate of reaction. Concentration  Temperature Surface Area All of these
9 A flat curve in rate vs time gaph indicate. Reaction completed High rate Constant rate Temperature increase
10 Rate of fastest At start In middle At end After completion
11 Which of the following methods measures reaction rate. Conductivity Titration Volume of gas All of these
12 Unit of rate for gaseous reaction are. mol dm-3 s-1 atm mol kg s-1
13 Rate of reaction is measured as. Increase Temperature Change is concentration per unit time Total eergy of reactants Change in volume per mole
14 Which one reduces activation energy. Catlyst Inhibitor Product Reactant
15 Collision frequency depends on Pressure Concentration Temperature All of these
16 Effective collisions are those that. Have enough energy and proper orientation Are elastic Are in vacuum Produce no change
17 The units of the rate constant (k) for a reaction depend on the Activation energy of the reaction Temperature of the reaction Overall order of the reaction  Stoichiometry of the balanced chemical equation
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