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Which one of the following statement is ...

Which one of the following statement is are true? (at `25^(@)`C)

A

`PH+pOH=14` for all aqueous solutions

B

pH of `1xx10^(-8)` MHCI is 8

C

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

D

Solution of `H_(3)PO_(4)` and and `NaH_(2)PO_(4)` can act as buffer

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The correct Answer is:
A, C, D
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AAKASH SERIES-IONIC EQUILLIBRIUM-LECTURE SHEET ( EXERCISE-II ) (Straight Objective Type Questions)
  1. The P^(H) of 10^(-8) M HCI is

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  2. Each 10^(-3)M of following four acids are taken. Their P^(H) values a...

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  3. The P^(H) of 0.001 M CH(3),COOH is

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  4. The P^(H) of 10^(-3) M mono acidic base, if it is 1% ionised is

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  5. The P^(H) of a weak mono basic acid is 5. The degree of ionisation of...

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  6. The P^(H) of HCI is 5. It is diluted by 1000 times. Its P^(H) will be

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  7. The P^(H )of a solution is 6. Its [H(3),O^(4)] is decreased by 1000 ti...

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  8. The P^(H) of a solution is 11. lt is diluted by 1000 times. Then the P...

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  9. Which of the following are correct?

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  10. Which are Correct statements ?

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  11. Which of the following solution will have pH = 13 on assuming complete...

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  12. Which one of the following statement is are true? (at 25^(@)C)

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  13. 100 ml of 0.1 M NaCl and 100 ml of 0.2 MNaOH are mixed. What is the ch...

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  14. The pH of 0.05 M aqueous solution of diethyl amine is 12.0. The K(b), ...

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  15. What is the P^(H) of a solution obtained by mixing equal volumes of tw...

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  16. x xx 10^(-2) gm of NaOH should be used up to prepare 200ml of a soluti...

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  17. Calculate the change in pH of water when 0.01 mole of NaOH are added i...

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  18. Weak acids and bases are not completely ionised when dissolved in pola...

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  19. Weak acids and bases are not completely ionised when dissolved in pola...

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  20. Weak acids and bases are not completely ionised when dissolved in pola...

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