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Which statement is not true?...

Which statement is not true?

A

`pH` of `1xx10^(8) M HCl` is `8`

B

`96500` coulomb deposits `1 g` equivalent of copper

C

Conjugate base of `H_(2)PO_(4)^(-)` is `HPO_(4)^(2-)`

D

`pH+pOh=14` for all aqueous solution

Text Solution

Verified by Experts

The correct Answer is:
A
`pH` of `1xx108 M HCl` is `-7`(`HCl` is acid)
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A2Z-IONIC EQUILIBIUM-Ph, Pkw And Ph Mixture Of Acid And Bases
  1. The hydrogen ion concentration of a 10^(-8) M HCl aqueous soultion at ...

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  2. A reaction CaF(2)hArrCa^(2+)+2F^(-) is at equilibrium. If the concentr...

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  3. What molar concentration of ammonia will provide a hydroxyl ion concen...

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  4. An acid solution of pH=6 is diluted 1000 times, the pH of the final so...

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  5. What will be the pH of a solution formed by mixing 40 ml of 0.10 M HCl...

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  6. 2H(2)OhArrH(3)O^(+)+OH^(-) K(w)=1xx10^(-14) at 25^(@)C. Hence, K(a) ...

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  7. Equal volumes of two soultion, one having pH 6 and the other havingpH ...

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  8. A solution is prepared by dissolving 5.6 g of KOH per litre of solutio...

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  9. [OH^(-)] in a solution is 1 mol L^(-1). The pH of the solution is

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  10. If K(a)=10^(-5) for a weak acid, then pK(b) for its conjugate base wou...

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  11. The dissociation constant of an acid is 1xx10^(-5). The pH of its 0.1 ...

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  12. For NH(3), K(b)=1.8xx10^(-5). K(a) for NH(4)^(+) would be

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  13. A solution of HCl contains 0.1920 g of an acid in 0.5 litre of a solut...

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  14. 10^(-6) M NaOH is diluted by 100 times. The pH of diluted base is

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  15. Which statement is not true?

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  16. When rain is accompained by a thunderstorm, the collected rain water w...

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  17. Hydrogen ion concentration in mol//L in a solution of pH=5.4 will be:

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  18. The pK(a) of a weak acid, HA, is 4.80. The pK(b) of a weak base, BOH, ...

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  19. How many litres of water must be added to 1 L of an aqueous solution o...

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  20. An acid HA ionizes as HAhArrH^(+)+A^(-) The pH of 1.0 M solution is 5....

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