| 1 |
Which properties of liquid is measured by polarimeter |
- A. Conductance
- B. Refractive index
- C. Optical activity
- D. Change in volume
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| 2 |
When a chemical reaction is completed. |
- A. Instantaneous rate > average rate
- B. Instantaneous rate = average rate
- C. Instantaneous rate is zero
- D. Both average and instantaneous rates become zero
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| 3 |
Dilatometer method is useful for the reactions that involve. |
- A. Ionic species
- B. Where reactant absorb U.V. visible or infrared radiations
- C. Small volume changes in solutions
- D. Change in refractive indices
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| 4 |
|
- A. 1
- B. 2
- C. 3
- D. None of these
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| 5 |
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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| 6 |
Which technique is used ot determine the absorption of radiations. |
- A. Spectrometry
- B. dilatometer method
- C. Refractometric method
- D. Optical rotation method
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| 7 |
The rate of reaction |
- A. Increases
- B. Decreases
- C. Remains the same
- D. May decrease of increase
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| 8 |
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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| 9 |
The mathematical relation between the rate of reaction and the concentrations of the reactants is known as the |
- A. Rate equation
- B. Rate law
- C. Arrhenius equation
- D. Both a and b
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| 10 |
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
|