MDCAT Chemistry Chapter 6 MCQ Test With Answer for (Electrochemistry)

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MCQ's Test For MDCAT Chemistry Chapter 6 Electrochemistry Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 6 Electrochemistry Online Test

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MDCAT Chemistry Chapter 6 Electrochemistry Online Test

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Question # 1

The study of which one of the followings guides to the mechanism of the reaction

Question # 2

If reactants are conductor of electricity, then method is used to measure the change in concentration of reaction

Question # 3

Higher the surface area available for reaction

Question # 4

Unit of the rate constant depends upon the

Question # 5

Which property of liquid is measured by polarimeter

Question # 6

Substance which is formed as well as consumed during a chemical reaction and have temporary existence.

Question # 7

Consider gas is measure in bars then the units of rate of reaction is

Question # 8

The order of reaction provides valuable information about of reaction

Question # 9

The radioactive disintegration of 238U92 is

Question # 10

By increasing the concentration of reactants, the rate of reaction

Question # 11

The reaction kinetics concerned with the

Question # 12

The rate of reaction between A and B increases by a factor of 100, when the concentration of A is increased 10 folds, the order of reaction with respect to A is

Question # 13

For reaction of methane and chlorine light is not available then

Question # 14

The concentration of product is increasing from 30 mole/dm3 to 40mol/dm3 in 0.5 sec then rate of reaction will be------moledm-3sec-1

Question # 15

Which of the following statement about the order of reaction is true?

Question # 16

In dilatometric method is directly proportional to extent of reaction

Question # 17

The reaction which is zero order

Question # 18

The conversion of molecules of A to B follows a second order kineties. Doubling the concentration of A will inerease the rate of formation of B by a factor of

Question # 19

For a chemical reaction which can never be a fractional no

Question # 20

If the energy of the activated complex lies close to energy of reactants, it means that reaction is

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Sr.# Question Answer
1 Unit of the rate constant depends upon the
A. Molecularity of reaction
B. Order of reaction
C. Concentration terms
D. Number of reactants
2 Which of the following statement about the order of reaction is true?
A. The order of reaction can only be determined by experiment
B. a second order reaction is also bimolecular
C. The order of reaction is always non-zero
D. The order of reaction increases with increasing temperature
3 The number of atoms or molecules whose concentrations determines the rate of a chemical reaction is called the
A. Molecularity of the reaction
B. specific activity of the reaction
C. Order of the reaction
D. rate constant of the reaction
4 For reaction of methane and chlorine light is not available then
A. Reaction will take place rapidly
B. No Reaction take place
C. Reaction occurs at double the rate
D. May all cases occur
5 Rusting of iron is the example of
A. Fast
B. Slow
C. moderate
D. depends upon conditions
6 Which property of liquid is measured by polarimeter
A. Conductance
B. Optical activity
C. Refractiye Indéx
D. Change in volume
7 Which of the following reactions are usually slow?
A. Neutralization of acids and bases
B. Displacement Reactions
C. Organic substitution reaction
D. Free radical reactions
8 Doubling the pressure in a liquid phase reaction
A. Will double the rex
B. Will increase the rex
C. Will decrease the rex
D. Will not alter the concentration of reactant
9 The order of reaction provides valuable information about of reaction
A. Condition
B. Concentration
C. Mechanism
D. Parameters
10 For a chemical reaction to occur
A. The vessel shall be open
B. Reacting molecules should have less energy than Ea at time of collision
C. Reacting molecules must be properly oriented and energy more than or equal to Ea
D. The reacting molecules must not collide with each other
11 Rate of which reaction increases with temperature?
A. Exothermic and endothermic reactions
B. Endothermic reactions
C. Exothermic reactions
D. None of these
12 Half-lives required to convert 100% reactant to produet for a first order reaction are
A. 10
B. 1000
C. 100
D. Infinity
13 When the concentration of reactants is taken as unity the rate of reaction is equal to
A. average rate
B. concentratian of reactant
C. instantaneous rate
D. specific rate constant
14 If the energy of the activated complex lies close to energy of reactants, it means that reaction is
A. Slow
B. Exothermic
C. Endothermic
D. Exothermic and fast
15 A reaction A- B is independent of concentration of reactant A. The order of reaction will be
A. First order
B. Second order
C. Third order
D. Zero order
16 The collision which results in chemical reaction
A. Effective collision
B. Ineffective collision
C. Useless collision
D. All of the above
17 In dilatometric method is directly proportional to extent of reaction
A. Change in concentration
B. Change in pressure
C. Chang in volume
D. Change in temperature
18 In the reaction A+B→ Products, if B is taken in excess, then it is an example of
A. Second order reaction
B. zero order reaction
C. Pseudo first order reaction
D. first order reaction
19 All the Hydrolytic reactions are
A. First order
B. Second order
C. Third order
D. pseudo-first order
20 The conversion of molecules of A to B follows a second order kineties. Doubling the concentration of A will inerease the rate of formation of B by a factor of
A. 2
B. 4
C. 1/2
D. 1/4

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