| 1 |
The quantitative relationship between rate and concentration is given by. |
- A. Law of mass action
- B. Rate law
- C. Both of these
- D. Le Chatelier's principle
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| 2 |
Which statement is incorrect about activated complex |
- A. Short lived
- B. Maximum energy
- C. Unstable combination of atoms
- D. Less energy than Ea
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| 3 |
After 3 half lives of a chemical reaction, the % fraction of the amount left is |
- A. 6.25
- B. 75
- C. 12.5
- D. 50
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| 4 |
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
|
| 5 |
Which technique is used ot determine the absorption of radiations. |
- A. Spectrometry
- B. dilatometer method
- C. Refractometric method
- D. Optical rotation method
|
| 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 |
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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| 8 |
Glucose can be converted into ethanol by an enzyme. |
- A. Lipase
- B. Zymase
- C. Sucrose
- D. Urease
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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
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| 10 |
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
|