MDCAT Chemistry Chapter 6 Chemical Equilibrium Online Test With Answers

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MDCAT Chemistry Chapter 6 Chemical Equilibrium Online Test

Sr. # Questions Answers Choice
1 If the energy of the activated complex lies close to energy of reactants, it means that reaction is Slow Exothermic Endothermic Exothermic and fast
2 By increasing the concentration of reactants, the rate of reaction Decreases Increases Remains constant Not predicted
3 The increase in reaction rate as a result of increase in temperature from 10K to 90K is 512 256 400 112
4 For a chemical reaction to occur The vessel shall be open Reacting molecules should have less energy than Ea at time of collision Reacting molecules must be properly oriented and energy more than or equal to Ea The reacting molecules must not collide with each other
5 Which of the following reactions are usually slow? Neutralization of acids and bases Displacement Reactions Organic substitution reaction Free radical reactions
6 Rate of which reaction increases with temperature? Exothermic and endothermic reactions Endothermic reactions Exothermic reactions None of these
7 In which of the following techniques rate of reaction is directly related with number ofions Spectrometry Dilatometric method Conductometric method Refractometric method
8 For a chemical reaction which can never be a fractional no order molecularity half-life rate constant
9 If the rate of the reaction is equal to the rate constant, the order of the reaction is 3 1 0 2
10 If the reaction "P+Q→R+S' is deseribed as being of zero order with respect to P, it means that P is catalyst in this reaction P molecules do not possess sufficient energy to react The concentration of P does not change during the reaction The rate of reaction is independent of the concentration of P
11 For reaction of methane and chlorine light is not available then Reaction will take place rapidly No Reaction take place Reaction occurs at double the rate May all cases occur
12 Which of the following statement about the order of reaction is true? The order of reaction can only be determined by experiment a second order reaction is also bimolecular The order of reaction is always non-zero The order of reaction increases with increasing temperature
13 The reaction takes place among the molecules when they have: Activation energy Properly oriented Concentrated Activation energy and proper orientation
14 Half-lives required to convert 100% reactant to produet for a first order reaction are 10 1000 100 Infinity
15 Doubling the pressure in a liquid phase reaction Will double the rex Will increase the rex Will decrease the rex Will not alter the concentration of reactant
16 When the concentration of reactants is taken as unity the rate of reaction is equal to average rate concentratian of reactant instantaneous rate specific rate constant
17 Higher the surface area available for reaction slower the reaction faster the reaction constant the reaction lower the Ea
18 Amount of product formed increases with time, this statement is true for reactions-------with kinetics 1s order 3rd order zero order Any order
19 All the Hydrolytic reactions are First order Second order Third order pseudo-first order
20 The radioactive disintegration of 238U92 is First order Second order Third order Zero order
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