| 1 |
The unit of the rate constant is 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
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| 2 |
With increases of 10 oC temperature the rate of reaction doubles. This increase in rate of reactions is due to. |
- A. Decrease in activation energy of reaction
- B. Decrease in the number of collisions between reactant molecules
- C. Increase in activation energy of reactants
- D. Increase in number of effective collisions
|
| 3 |
a zero order reaction is one is which |
- A. Reactants do not react
- B. One reactant is in large excess
- C. Concentration of reactant do not change with passage of time
- D. Rate is of affected by changing concentration of reactants
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| 4 |
The rate of reaction |
- A. Increase as the reaction proceeds
- B. Decreases as the reaction proceeds
- C. Remains the same as the reactions proceeds
- D. May decrease or increase as the reaction proceeds
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| 5 |
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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| 6 |
After 3 half life of a chemical reaction, amount of reactant un reactive will be. |
- A. 50%
- B. 25%
- C. 12.5%
- D. 6.25%
|
| 7 |
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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| 8 |
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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| 9 |
In zero order reaction, the rate is independent of |
- A. Temperature of reaction
- B. Concentration of reactants
- C. Concentration of products
- D. None of these
|
| 10 |
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
|