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11-CHAPTER-REACTION-KINETICS-MCQS

11-CHAPTER-REACTION-KINETICS-MCQS - 1st year chemistry...

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1 st year chemistry n0tes new 1 www.allonlinefree.com CHAPTER 11 REACTION KINETICS MCQS Q.1 In zero order reaction, the rate is independent of (a) temperature of reaction (b) concentration of reactants (c) concentration of products (d) none of above Q.2 If the rate equation of a reaction 2A + B ® Product, Rate = k [A]2 [B] and A is present in large excess then order of reaction is: (a) 1 (b) 2 (c) 3 (d) none of these Q.3 The rate of reaction (a) increases as the reaction proceeds (b) decreases as the reaction proceeds (c) remains the same as the reaction proceeds (d) may decrease or increase as the reaction proceeds Q.4 With increases of 10 oC temperature the rate of reaction doubles. This increase in the rate of reaction is due to (a) decrease in activation energy of reaction (b) decrease in the number of collisions b/w reactants molecules (c) increase in activation energy of reactants (d) increase in number of effective collisions Q.5 The unit of the rate constant is the same as that of the rate of reaction in (a) first order reaction (b) second order reaction (c) zero order reaction (d) third order reaction www.allonlinefree.com
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1 st year chemistry n0tes new 2 www.allonlinefree.com Q.6 The unit of reaction is (a) mole/dm3 (b) mole/pound (c) mole/dm3 sec (d) mole/cm3 Q.7 In the rate equation, when the conc. of reactants is unity then rate is equal to (a) specific rate constant (b) average rate constant (c) instantaneous rate constant (d) none of above Q.8 The rate of reaction between two specific time intervals is called (a) instantaneous rate (b) average rate (c) specific rate (d) ordinary rate Q.9 Instantaneous rate of a chemical reaction is (a) rate of reaction in the beginning (b)
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