| 1 |
The reaction goes from left to right , if: |
- A. Qc = Kc
- B. Qc > kc
- C. Qc<Kc
- D. Qc = 0
|
| 2 |
Law of Mass Action was put forward by: |
- A. G.N.Lewis
- B. Lowry
- C. Arrhenius
- D. Gulbderg and Waage
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| 3 |
When the magnitude of Kc is very large in indicates. |
- A. Reaction never go to completion
- B. Reaction is in equilibrium state
- C. Reaction will complete after some time
- D. Reaction has almost to completion
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| 4 |
Guldberg and waage put forward law of mass action in: |
- A. 1860
- B. 1869
- C. 1870
- D. 1879
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| 5 |
The rate of reverse reaction in the beginning. |
- A. Slow
- B. moderate
- C. Very fast
- D. Low
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| 6 |
For a reaction between PCL<sub>3</sub> and Cl<sub>2</sub> to form PCl<sub>5</sub> the units of Kc are: |
- A. Mol dm<sup>-3</sup>
- B. Mol<sup>-1</sup> dm<sup>-3</sup>
- C. Mol<sup>-1</sup>dm<sup>3</sup>
- D. Mol dm<sup>3</sup>
|
| 7 |
Which one of the following statements is not correct about active mass? |
- A. Rate of reaction is directly proportional to activ emass.
- B. Active mass is taken in molar concentration
- C. Active mass is represented by square brackets
- D. Active mass means total mass of substances.
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| 8 |
When the reaction causes to produced it is called. |
- A. Chemical equlibrium state
- B. Static equilibrium
- C. Dynamic equilibriiun
- D. All
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| 9 |
The substances formed during the chemical reaction are called. |
- A. Product
- B. Reactants
- C. Radicals
- D. Element
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| 10 |
In an irreversible reaction dynamic equilibrium: |
- A. Never establishes
- B. Established before the completion of reaction
- C. Establishes after the completion of reaction
- D. Establishes readily
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