| 1 |
When HCl is added to H2S aqueous solution, Its ionization |
- A. Decrease
- B. Increase
- C. Remains constant
- D. First increases than decreases
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| 2 |
The solubility product of AgCI is 2.0 x 10<sup>-10</sup>mol<sup>2</sup>dm<sup>-6</sup>The maximum concentration of Ag<sup>+</sup>ions in the solution is |
- A. 2.0 x 10<sup>-10</sup>mol dm<sup>-3</sup>
- B. 1.41 x 10<sup>-5</sup>mol dm<sup>-3</sup>
- C. 1.0 x 10<sup>-10</sup>mol dm<sup>-3</sup>
- D. 4.0 x 10<sup>-20</sup>mol dm<sup>-3</sup>
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| 3 |
Which one of the following aqueous solutions has the highest pH |
- A. 0.1 M NaOH
- B. 0.1 M HCl
- C. 0.2 M H2SO4
- D. 0.1 M HNO3
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| 4 |
Which one of the following has highest pH |
- A. Distilled water
- B. 1 M NH4OH
- C. 1 M NaOH
- D. Water saturated with chlorine gas
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| 5 |
pH of buffer is calculated by. |
- A. Sorenson equation
- B. Mosley equation
- C. Henderson equation
- D. De broglie equation
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| 6 |
Optimum pressure in Haber's process for synthesis of Ammonia is |
- A. 100 -150 atm
- B. 200- 300 atm
- C. 350 - 450 atm
- D. 500 - 600 atm
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| 7 |
A buffer solution can be prepared by mixing |
- A. Weak acid and its salt with weak base
- B. Weak base and its salt with strong acid
- C. Strong acid and its salts with weak base
- D. Strong base and its salt with weak acid
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| 8 |
If the volumes of reactants and products are same in a gaseous phase reaction, then the equilibrium state is not affected by |
- A. Change of temperature
- B. Change of pressure
- C. Change of concentration
- D. Catalyst
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| 9 |
Sum of pKa and pKb is equal to. |
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| 10 |
Le-Chatelier Braun principle is sometimes known as |
- A. Law of mass action
- B. Law of mobile equilibrium
- C. Law of active mass
- D. All of these above
|