| 1 |
The rate of reaction determined at any given time is called. |
- A. Average rate
- B. Instantaneous rate
- C. Spontaneous rate
- D. Over all rate
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| 2 |
A type of meals are usually used as catalyst. |
- A. Coinage metal
- B. Alkali metals
- C. Transition metals
- D. alkaline earth metals
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| 3 |
All radio active disintegration nuclear reaction are of. |
- A. First order
- B. Zero order
- C. 2nd order
- D. Third order
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| 4 |
Which one of the following statements is incorrect. |
- A. Enzymes are protein in nature
- B. Enzymes are catalyst
- C. Enzymes can catalyze any reaction
- D. Urease is an enzyme
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| 5 |
Half -Life period of a first order reacting is independent of. |
- A. Initial concentration of the compound
- B. Conditions of temperature
- C. Presence of catalyst
- D. All the above
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| 6 |
With increase in 10°C temperature, the rate of reaction double. This increase in rate of reaction is due to |
- A. Decrease in activation energy of reaction
- B. Decrease in the number of collisions between reactant molecules
- C. Increases in activation energy of reactants
- D. Increase in number of effect collisions
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| 7 |
The unit of rate constant is the same as that of the rate of reaction is. |
- A. First order reaction
- B. Second order reaction
- C. Zero order reaction
- D. Third order reaction
|
| 8 |
A substance which rerareds the rate of a reaction is called |
- A. Inhibitor
- B. Activator
- C. Auto-catalyst
- D. None of these
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| 9 |
The unit of rate constant is same as that of rate of reaction in |
- A. first order reaction
- B. Second order reaction
- C. Third order reaction
- D. Zero order reaction
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| 10 |
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
|