Home
Class 12
CHEMISTRY
For the reaction S(2)O(3)^(2-)(aq) +2H...

For the reaction
`S_(2)O_(3)^(2-)(aq) +2H_(3)O^(+)(aq) hArr S(s)+H_(2)SO_(3)(aq)+H_(2)O(l)`
Rate `=k[H_(3)O^(+)][S_(2)O_(3)^(2-)]`
Reaction is fastest in

A

0.1 M `CH_(3)COOH`

B

0.1 M `H_(2)SO_(4)`

C

0.1 M HCl

D

0.1 M NaOH

Text Solution

Verified by Experts

The correct Answer is:
B
The reaction will be fastest when `[H_(3)O^(+)]` is maximum
`[H^(+)]` from 0.1 M `CH_(3)COOH lt0.1 M`
`[H^(+)]` from 0.1 M `H_(2)SO_(4) =0.2 M`
`[H^(+)]` from 0.1 M HCl`= 0.1 M`
`[H^(+)] ` from 0.1 M NaOH` = 10^(-13)M`
Promotional Banner

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise REVISION QUESTIONS FROM COMPETITVE EXAMS|236 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQs|10 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise Buffer solutions / Salt Hydrolysis|29 Videos

  • HYDROCARBONS

    DINESH PUBLICATION|Exercise All Questions|493 Videos

  • NO IDEA

    DINESH PUBLICATION|Exercise Unit Test -|1 Videos

Similar Questions

Explore conceptually related problems

O_(3)(g)+I^(-)(aq)+H_(2)O(l) to

The reaction H_(2)O_(2)(aq)+3I^(-)(aq)+2H^(+)(aq)rarrI_(3)^(-)(aq)+2H_(2)O(l) has a rate law : rate = k[H_(2)O_(2)][I^(-)] . What is the order of the reaction with respect to H^(+) , and what is the overall order of the reaction?

Consider the reaction: 2S_(2)O_(3)^(2-)(aq)+I_(2)(s) rarr S_(4)O_(6)^(2-)(aq) + 2I^(Θ)(aq) 2S_(2)O_(3)^(2-)(aq) + 2Br_(2)(l) + 5H_(2)O(l) rarr 2SO_(4)^(2-)(aq) + 4Br^(Θ)(aq)+10H^(o+)(aq) Why does the same reducatnt, thiosulphate, react differently with iodine and bromine?

H_(2) SO_(4) in aqueous medium ionises in two steps H_(2) SO_(4) (aq) + H_(2) O (i) to H_(3) O^(+) (aq) + HSO_(4)^(-) (aq) , K_(a_(1)) = x HSO_(4)^(-) (aq) + H_(2) O(l) to H_(3) O^(+) (aq) + SO_(4)^(2-) , K_(a_(2)) = y What is relation between x and y ?

DINESH PUBLICATION-IONIC EQUILIBRIUM -MULTIPLE CHOICE QUESTIONS
  1. pH of the solution containing 50.0 mL of 0.3 M HCl and 50.0 mL of 0.4 ...

    Text Solution

    |

  2. pH at which an acidic indicator with K("in")=1xx10^(-5) changes colour...

    Text Solution

    |

  3. pH at which a basic indicator with K("in")=1xx10^(-10) changes colour ...

    Text Solution

    |

  4. A weak base, B, has basicity constant K(b)=2xx10^(-5). The pH of any s...

    Text Solution

    |

  5. pH of 0.01 M (NH(4))(2) SO(4) and 0.02 M NH(4)OH buffer (pK(a) of NH(4...

    Text Solution

    |

  6. 100mL of pH =6 solution is diluted to 100mL by water. pH of the soluti...

    Text Solution

    |

  7. Auto-ionisation of liquid NH(3) is 2NH(3) hArr NH(4)^(o+) +NH(2)^(Th...

    Text Solution

    |

  8. BOH is a weak base, molar concentration of BOH that provides a [OH]^(-...

    Text Solution

    |

  9. Which of the following solution will have pH of 4.74

    Text Solution

    |

  10. Which of the following mixtures will act as a buffer solution when dis...

    Text Solution

    |

  11. For the reaction S(2)O(3)^(2-)(aq) +2H(3)O^(+)(aq) hArr S(s)+H(2)SO(...

    Text Solution

    |

  12. Both HCOOH and CH(3)COOH solutions have equal pH. If K(1) // K(2) ( r...

    Text Solution

    |

  13. pH of Ca(OH)(2) solution is 12. Millimoles of Ca(OH)(2) present in 100...

    Text Solution

    |

  14. A buffer solution contains 100mL of 0.01 M CH(3)COOH and 200mL of 0.02...

    Text Solution

    |

  15. Assuming 100% ionization in case of strong electrolytes which of the f...

    Text Solution

    |

  16. To prepare a buffer of pH 8.26, amount of (NH(4))(2)SO(4) to be added ...

    Text Solution

    |

  17. Percentange ionisation of weak acid can be calculated using the formul...

    Text Solution

    |

  18. pH of a mixture of 1 M benzoic acid (pK(a)=4.20) and 1 M C(6)H(5)COONa...

    Text Solution

    |

  19. If the freezing point of 0.1 M HA(aq) solution is -0.2046^(@)C then pH...

    Text Solution

    |

  20. If the equilibrium constant for the reaction of weak acid HA with stro...

    Text Solution

    |