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Which one of the following substances ha...

Which one of the following substances has the highest proton affinity ?

A

`H_(2)O`

B

`H_(2)S`

C

` NH_(3)`

D

`PH_(3)`

Text Solution

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The correct Answer is:
C
Out of the given four choices, `NH_(3)` is the strongest Lewis base i.e., it has the highest abiity to give a lone pair to a proton i.e., it has highest proton `(H^(+))`affinity.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -REVISION QUESTIONS FROM COMPETITVE EXAMS
  1. The solubility of a springly soluble salt AB(2) in water is 1.0xx10^(-...

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  2. Which one of the following statements is not true ?

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  3. Which one of the following substances has the highest proton affinity ...

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  4. Which one of the following is an amphoteric oxide?

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  5. Solubility product of a salt of AB is 1 xx 10^(-8) M ^(2) in a soluti...

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  6. The pH value of gasfric juice in humna stomach is about 1.8 and in in...

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  7. Which one of the following is not a buffer solution ?

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  8. Bases haven't property of

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  9. If pH of a solution decreases from 5 to 2, then it is

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  10. Conjugate acid of SO(4)^(2-) is

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  11. pH of water is

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  12. CuSO(4) solution is

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  13. According to Lewis concept acid is

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  14. An aqueous solution in which the H^(+) ion concentration is greater th...

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  15. Hydrolysis constant for a salt of weak acid and weak base would be

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  16. In the following reaction. AgCl +KI hArr KCl +AgI as KI is added,...

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  17. Accepting the definition that an acid is a proton donor, the acid in t...

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  18. Which of the following is the buffer solution ?

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  19. Which one of the following oxides is amphoteric ?

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  20. The acid dissociation constant K(a) of acetic acid is 1.74 xx 10^(-5) ...

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