Home
Class 12
CHEMISTRY
In the reaction : HCN+H(2)O hArr H(3...

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

A

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

B

2. `HCN, CN^(-)`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level - II)|90 Videos
  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level - III)|13 Videos
  • ENVIROMENTAL POLLUTION

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTIOS|2 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise Recent Examination Questions|13 Videos

Similar Questions

Explore conceptually related problems

In the acid - base reaction, HCl + CH_(3)COOH hArr Cl^(-)+CH_(3)COOH_(2)^(+) the conjugate acid of acetic acid is

In the reaction : Cl_(2)+2OH^(-)toOCl^(-)+Cl^(-)+H_(2)O

What is the conjugate acid of H_(2)O ?

The conjugate base of CH_(3)O^(-) is

Which is not conjugate pair of acid-base

For the reaction H_(2)O_((s)) hArr H_(2)O_((l)) at ""^(@)C and normal pressure

The reaction H_(2)S+H_(2)O_(2)rarrS+2H_(2)O shows

In the equation , 4M +8CN^(-) +2H_2O+O_2 rarr 4[M(CN)_2]^(-)+4OH^(-) , the metal M is

MODERN PUBLICATION-EQUILIBRIUM-Recent Examination Questions
  1. In the reaction : HCN+H(2)O hArr H(3)O^(+)+CN^(-) the conjugat...

    Text Solution

    |

  2. Consider the following gaseous equilibria with equilibrium constants K...

    Text Solution

    |

  3. 0.023g of sodium metal is reacted with 100 cm^(3) of water. The pH of ...

    Text Solution

    |

  4. A buffer solution contains 0.1 mole of sodium acetate dissolved in 100...

    Text Solution

    |

  5. One dm^(3) solution containing 10^(-5) moles each of Cl^(-) ions and C...

    Text Solution

    |

  6. pH value of which one of the following is NOT equal to one ?

    Text Solution

    |

  7. The pH of the solution obtained by mixing 100 mL of a solution of pH =...

    Text Solution

    |

  8. The equilibrium constant of the reaction : A((s))+2B((aq))^(+)hArr...

    Text Solution

    |

  9. The equilibrium constant of a reaction is 0.008 at 298 K. The standard...

    Text Solution

    |

  10. 5 mL of 0.4N NaOH is mixed with 20 mL of 0.1N HCl. The pH of the resul...

    Text Solution

    |

  11. On adding which of the following the pH of 20 mL of 0.1 N HCl will not...

    Text Solution

    |

  12. The yield of the products in the reaction, A(2(g))+2B((g))hArr C((...

    Text Solution

    |

  13. The conjugate base of H(2)PO(4)^(-) is :

    Text Solution

    |

  14. Identify a species which is 'NOT' a Bronsted acid but a Lewis acid.

    Text Solution

    |

  15. The pH of 10^(-8) M HCl solution is :

    Text Solution

    |

  16. An example for a neutral buffer is :

    Text Solution

    |

  17. For the equilibrium: CaCO(3(s)) iff CaO((s)) + CO(2(g)) , Kp = 1.64 at...

    Text Solution

    |

  18. The number of H^(+) ions present in 1 ml of a solution whose pH is 13 ...

    Text Solution

    |