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If Ka of HCN = 4xx10^-10, then the pH of...

If `K_a` of `HCN = 4xx10^-10`, then the pH of `2.5xx10^-1` molar HCN (aq) is

A

`2xx10^-5`

B

4.7

C

2

D

5

Text Solution

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The correct Answer is:
D
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PATHFINDER-EQUILIBRIUM-QUESTION BANK
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  3. If Ka of HCN = 4xx10^-10, then the pH of 2.5xx10^-1 molar HCN (aq) is

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  9. 0.1 M acetic acid solution is titrated against 0.1 M NaOH solution. W...

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  10. The pH of 0.01 (M) acetic solution at 25^@C (Ka=1.85xx10^-5)

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  11. The solubility of CaF2 (Ksp=3.4×10^(−11) ) in 0.1M solution of NaF wo...

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  13. NH4^+ ion an aqueous solution will behave as:

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  14. Assuming complete dissociation, which of the following solutions will ...

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  15. Which of the following mixtures can be regarded as buffer?

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  19. The solution which consumes [H^+] or [(OH)^-] or both simultaneously f...

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  20. pH of a saturated solution of Ba(OH)2 is 12. Hence K(sp) of Ba(OH)2 is

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