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Dissociation constant of water at 25^(@)...

Dissociation constant of water at `25^(@)` C is

A

`1.0 xx 10 ^(-14) `

B

` 1xx 10 ^(14)`

C

` 14`

D

`1.8xx 10^(-16) `

Text Solution

Verified by Experts

The correct Answer is:
D
` K_(diss) =(K_W)/( 55.5) =(1xx 10^(-14))/( ((1000)/(18)) )= 18 xx 10^(-17) = 1.8 xx 10 ^(-16) `
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AAKASH SERIES-IONIC EQUILIBRIUM -LECTURE SHEET (EXERCISE -II LEVEL -I (MAIN) (Straight Objective Type Questions))
  1. Dissociation constant of water at 25^(@) C is

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  2. At any temperature, P^(H) +P^(OH) is equal to

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  3. At any temperature ,the proton concentration of water is

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  4. At certain temperature, the H^(+) ion concentration of water is 4 xx 1...

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  5. At 298 K, the [H(2),O^(+)] of a solution is 2 xx 10^(-9) M. The natur...

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  6. At a given temperature, When an acid is added to water then the value ...

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  7. At 100^(@)C, the P^(H) of pure water is

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  8. At some high temperature, K(w) of water is 10^(-13) Then the P^(H) of ...

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  9. Among the following (a) P^(H) of water decreases with increase i...

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  10. The H^(+) ion concentration of a solution is 4xx10^(-5) M. Then th...

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  11. 0.004 g of NaOH is present in 1L of a solution. The pH of the solut...

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  12. The P^(H) of 0.005 M Ba (OH)(2) is

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  13. The [OH]^(-)] of 0.005 M H(2)SO(4) is

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  14. The P^(H) of a dibasic acid is 3.699. Its molarity is

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  15. The P^(H) of 10^(-8) M HCI is

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  16. The p^(H) of 0.1 M NaCI solution is

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  17. The P^(H) of a solution is 3.0. This solution is diluted by 100 times...

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  18. The P^(H) of HCI is 3. Then the P^(H) of NaOH solution having same mo...

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  19. For weak acid (alpha is very small)

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  20. At infinite dilution , the percentage ionisation of both strong and we...

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