Entry Test MCQ :: Reaction Kinetics
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31. |
A substance which increases the reactivity of enzyme is called |
A. |
Promoters |
B. |
Inhibitors |
C. |
Stimulators |
D. |
Non-activators |
Answer: Option A
Explanation:
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32. |
Addition of tetraethyl lead in petrol is example of |
A. |
ve catalysis |
B. |
?ve catalysis |
C. |
auto catalysis |
D. |
anti catalysis |
Answer: Option B
Explanation:
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33. |
When a product acts as catalyst then it is called |
A. |
Autocatalsis |
B. |
?ve catalysis |
C. |
ve catalysis |
D. |
self catalysis |
Answer: Option A
Explanation:
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34. |
End name of enzyme is |
Answer: Option B
Explanation:
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35. |
When the reaction completes in more than one steps rate of reaction will be determined by |
A. |
Fast step |
B. |
Slowest step |
C. |
All steps |
D. |
Molecularity of the reaction |
Answer: Option B
Explanation:
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36. |
For determining the order of reaction we use |
A. |
Refractometric method |
B. |
Dilatometric method |
C. |
Optical activity method |
D. |
Half life method |
Answer: Option D
Explanation:
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37. |
Energy of activation for backward reaction is less than forward reaction for ________ reaction |
A. |
Endothermic |
B. |
Exothermic |
C. |
Moderate |
D. |
Fast |
Answer: Option A
Explanation:
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38. |
The unit of slope in Arrhenius plot to calculate the energy of activation is |
Answer: Option C
Explanation:
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39. |
Which statement is incorrect about catalyst |
A. |
it is used in smaller amount |
B. |
decrease activation energy |
C. |
specific in action |
D. |
it affects specific rate constant |
Answer: Option D
Explanation:
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40. |
Which of the following type of reaction is 3rd order reaction |
A. |
2N2O5 = 2N2O4 + O3 |
B. |
NO + O3 ? NO2 + O2 |
C. |
2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2 |
D. |
None of these |
Answer: Option C
Explanation:
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