Home
Class 11
CHEMISTRY
Consider the reaction HCN((aq))hArrH((aq...

Consider the reaction `HCN_((aq))hArrH_((aq))^(+) + CN_((aq))^(-)` . At equilibrium, the addition of `CN_((aq))^(-)` would

A

Reduce `HCN_((aq))` concentration

B

Decrease the `H_((aq))^(+)` ion concentration

C

Increase the equilibrium constant

D

Decrease the equilibrium constant

Text Solution

Verified by Experts

The correct Answer is:
B
At equilibrium, the addition of `(CN)^(-)` would decrease the `(H^(+))` ion concentration to produce more and more HCN to nullify the increase of `CN^(-)aq `.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL EQUILIBRIUM

    ERRORLESS|Exercise PAST YEARS QUESTIONS|37 Videos

  • CHEMICAL EQUILIBRIUM

    ERRORLESS|Exercise ASSERTION & REASON |12 Videos

  • CHEMICAL EQUILIBRIUM

    ERRORLESS|Exercise NCERT BASED QUESTION (Activation Energy, Standard Free Energy and Degree of Dissociation and Vapour Density)|17 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ERRORLESS|Exercise Assertion & Reason |17 Videos

  • CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    ERRORLESS|Exercise Assertion & Reason |14 Videos

Similar Questions

Explore conceptually related problems

In the reaction, MnO_(4(aq))^(-)+Br_((aq))^(-) to MnO_(2(s))+BrO_(3(aq))^(-) , the oxidant is /are

Consider the reaction: KBr(aq)+AgNO_(3)(aq)toKNO_(3)(aq)+AgBr(s) This is an example of :

For the reaction: Cu(s) + 2Ag_((aq))^+ Leftrightarrow Cu_((aq))^(2+) +2Ag_((s)) , the equilibrium constant is given by

The reaction 3ClO^(ө)(aq)rarrClO_(3)(aq)+2Cl^(ө)(aq) is an example of

The reaction 3ClO^(-)(aq)rarrClO_(3)^(-)(aq)+2Cl^(-)(aq) an example of :

The reaction (1)/(2)H_(2)(g)+AgCl(s)hArrH^(+)(aq)+Cl^(-)(aq)+Ag(s) occurs in the galvanic cell

ERRORLESS-CHEMICAL EQUILIBRIUM-NCERT BASED QUESTION (Le-Chatelier Principle and it.s Application)
  1. N(2)(g) +3H(2)(g) hArr 2NH(3)(g), In the reaction given above, the ...

    Text Solution

    |

  2. For the equilibrium 2NO(2)(g)hArrN(2)O(4)(g) + 14.6 Kcal the increase ...

    Text Solution

    |

  3. Consider the reaction HCN((aq))hArrH((aq))^(+) + CN((aq))^(-) . At equ...

    Text Solution

    |

  4. According to Le-Chatelier's principle, an increase in the temperature ...

    Text Solution

    |

  5. What is the effect of increasing pressure on the dissociation of PCl5...

    Text Solution

    |

  6. If pressure increases then its effect on given equilibrium C((s)) + H(...

    Text Solution

    |

  7. Formation of SO(3) take place according to the reaction 2SO(2) + O(2)h...

    Text Solution

    |

  8. N(2)(g) + 3H(2)(g) rarr 2NH(3)(g) + heat.What is the effect of the inc...

    Text Solution

    |

  9. The reaction 2SO(2) + O(2) rarr 2SO(3) + heat . The equilibrium reacti...

    Text Solution

    |

  10. Le-Chatelier's principle is applicable only to a

    Text Solution

    |

  11. In which of the following equilibrium system the rate of the backward ...

    Text Solution

    |

  12. Le-Chatelier principle is not applicable to

    Text Solution

    |

  13. The rate of reaction of which of the following is not affected by pres...

    Text Solution

    |

  14. The equilibrium reaction that is not influenced by volume change at co...

    Text Solution

    |

  15. The yield of product in the reaction, A(2)(g)+2B(g) hArr C(g)+Q KJ ...

    Text Solution

    |

  16. Which reaction is not affected by change in pressure ?

    Text Solution

    |

  17. Te yield of product in the reaction A(2(g))+B(2(g))hArr2AB((g)),Delt...

    Text Solution

    |

  18. In the manufacture of ammonia by Haber's process, N(2)(g) +3H(2)(g) ...

    Text Solution

    |

  19. CaCO3(s) hArr CaO(s) + CO2(g), DeltaH=110 kJ The pressure of CO2 :

    Text Solution

    |

  20. For the reaction CH(4(g))+2O(2(g))hArrCO(2(g))+2H(2)O(l): (DeltaH=-1...

    Text Solution

    |