| 1 |
The unit of rate constant depends upon |
- A. Number of reactants
- B. Concentration terms
- C. Order of reaction
- D. Molecularity of reaction
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| 2 |
Unit of rate constant is the same as that of the rate of reaction in |
- A. Zero order reaction
- B. 1st order reaction
- C. 2nd order reaction
- D. 3rd order reaction
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| 3 |
the rate of reaction when concentration of reactants are taken unity is called. |
- A. Average rate
- B. Instantaneous rate
- C. Specific rate
- D. Rate equation
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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 |
If the energy of the activated complex lies close to energy of reactants, it means that reaction is |
- A. Slow
- B. Fast
- C. Exothermic
- D. Endothermic
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| 6 |
When a reaction occurs in many steps than the slowest step is. |
- A. Mechanism step
- B. Rate determining step
- C. enthalpy determining step
- D. None of the above
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| 7 |
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
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| 8 |
Half life period for 235 U is<div> 92</div> |
- A. 710 million years
- B. 810 milion years
- C. 720 million years
- D. 820 million years
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| 9 |
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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| 10 |
The influence of temperature on reaction rate is predicated by |
- A. Free energy change of reaction
- B. Arrhenius equation
- C. Van der weal's equation
- D. Kinetic equation
|