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At 25^(0)C, the hydroxyl ion concentrati...

At `25^(0)`C, the hydroxyl ion concentration of a basic solution is `6.75 xx 10^(-3)` M.Then the value of `K_(w)` is

A

` 13.5 xx 10^(-6) M^(2) `

B

` 13.5 xx 10 ^(-12) M^(2) `

C

` 13.5 xx 10 ^(-8) M^(2) `

D

`10 ^(-14) M^(2) `

Text Solution

Verified by Experts

The correct Answer is:
D
At ` 25 ^(@) C , K_W = 1xx 10 ^(-14) M^(2) `
It is temperature dependant only.
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AAKASH SERIES-IONIC EQUILIBRIUM -PRACTICE SHEET (EXERCISE -II LEVEL -I (MAIN) (Straight Objective Type Questions))
  1. Which of the following is wrong ?

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  2. If the ionic product of water (K(w) ) is 1.96 xx 10^(-14) at 35^(circ)...

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  3. At 25^(0)C, the hydroxyl ion concentration of a basic solution is 6.75...

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  4. At certain temperature the K(w) of D(2),O is 10^(=-16) M. Then the pD ...

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  5. One litre of water contains 10^(-7) "moles of " H^(+) ions . Degree ...

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  6. The [OH^(-)] of a solution is 10^(-10) Its pH is

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  7. The pH of a 0.005 M H2SO4 solution is

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  8. The P^(H) of a solution is 3.602. Its H^(+) ion concentration is

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  9. The ionic product of water is 10^(-14), The H^(+) ion concentration in...

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  10. What is the pH of a solution obtained by dissolving 0.0005 mole of the...

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  11. The P^(H) of a I lit solution is 2. It is diluted with water till its ...

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  12. The P^(H) of solution is 9. It is times more basic than a solution wi...

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  13. 50 ml of H(2),O is added to 50 ml of 1xx 10^(-3) M barium hydroxide so...

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  14. When 100 ml of N/10 NaOH are added to 50 ml of N/5 HCI, the P^(H) of ...

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

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  16. Ostwald dilution law is applicable to

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  17. Which of the following is a strong electrolyte

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  18. Which of the following does not affect the degree of ionisation?

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  19. Which of the following is relatively stronger base? P^(kb) values are...

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

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