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The reaction HCN +H(2)O hArr H(3)O^(+)...

The reaction
`HCN +H_(2)O hArr H_(3)O^(+)+CN^(-),` the conjugate acid base pair is

A

`HCN,H_(3)O^(+)`

B

`H_(2)O,CN^(-)`

C

`CN^(-),H_(3)O^(+)`

D

`HCN,CN^(-)`

Text Solution

Verified by Experts

The correct Answer is:
D
A conjugate acid base pair is related by a proton transfer.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -BRAIN TEASERS -3
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  2. If the solubility of MX(2) ( a sparingly soluble salt is 2.5 xx 10^(-4...

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  3. The reaction HCN +H(2)O hArr H(3)O^(+)+CN^(-), the conjugate acid ba...

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  4. The sum of pH and pOH in aqueous solution is equal to

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  5. Which of the following solutions has pH =11 ?

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  7. If x mol L^(-1) is the solubility of Kal(SO(4))(2) , then K(sp) is equ...

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  8. The dissociation constant of monobasic acids A, B,C and D are 6 xx 10^...

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  9. If P^(@) and P(s), the V.P. of solvent and solution respectively and N...

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  10. 20 mL of C(2)H(5)OH when mixed with 20ml of water,the volume of the re...

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  11. The pH of a solution obtaine by mixing 50 mL of 0.4 N HCl and 50 mL of...

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  12. The pH of a 0.1 M CH(3)COOH which is 2% ionised in aqueous solution is

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  13. The difference between DeltaH and Delta E at constant voluem is equal ...

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  14. In which of the following neutralisation reaction will the enthalpy of...

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  15. In which of the following reactions is Delta H not equal to Delta E ?

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  16. The enthalpies of combustions are (i) Delta H(c ) (C(2)H(6))=- 1560...

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  17. Consider the reaction : SO(2)(g)+(1)/(2)O(2)(g) rarr SO(3)(g),Delta...

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  18. The enthalpy changes at 298 kJ in successive breaking of O-H bonds of...

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  19. The enthalpy of neutralisation of HCl by NaOH IS -55.9 kJ and that of...

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  20. Which of the following is not expected to be correct

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