Fsc Part 1 Chemistry MCQ's Test For Full Book With Answers

Fsc Part 1 Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Higher pressur eincreases rate for Solids Gases Liquids All phases
2 Which increases with rise in temperature? Activation energy Enthalpy Collision frequency Molecular weight
3 In a chemical reaction, a catalyst. Alters Delta H Lowers activation energy Is consumed Forms product
4 Effect of temperature on rate is  Negligible Linear Exponential Logarithmic
5 Increase in surface area Increases rate Decreases rate No effect Stops reaction
6 Which factor affects rate of reaction. Concentration  Temperature Surface Area All of these
7 A flat curve in rate vs time gaph indicate. Reaction completed High rate Constant rate Temperature increase
8 Rate of fastest At start In middle At end After completion
9 Which of the following methods measures reaction rate. Conductivity Titration Volume of gas All of these
10 Unit of rate for gaseous reaction are. mol dm-3 s-1 atm mol kg s-1
11 Rate of reaction is measured as. Increase Temperature Change is concentration per unit time Total eergy of reactants Change in volume per mole
12 Which one reduces activation energy. Catlyst Inhibitor Product Reactant
13 Collision frequency depends on Pressure Concentration Temperature All of these
14 Effective collisions are those that. Have enough energy and proper orientation Are elastic Are in vacuum Produce no change
15 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
16 On an energy profile diagram the presence of a catalyst is represented by  A highe rpeak representing the activation energy A lower peak representing the activation energy A change in the energy level of the reactants or products A shift in the equilibrium position
17 How does the presence of a catalyst affect the rate of a chemical reaction  It always decreases the rate of the reaction It always increases the rate of the reaction In increase the rate of the forward and decreases the rate of the reverse reaction It increases the rate of both the forward and reverse reactions
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