Home
Class 12
CHEMISTRY
During the electrolysis of conc H(2)SO(...

During the electrolysis of conc `H_(2)SO_(4)`, it was found that `H_(2)S_(2)O_(8)` and `O_(2)` liberated in a molar ratio of `3:1`. How many moles of `H_(2)` were found of moles of `H_(2)S_(2)O_(8)` ?
`(` Express your answer as `:3xx mol e s of H_(2),` integer answer is between 0 and 5`0`

A

water

B

oxygen

C

both (1) & (2)

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`O_(3)` will oxidise `H_(2)O_(2)` into oxygen, hence radioacitve oxygen of `H_(2)O_(2)` will go only in oxygen, not in water.
Half reactions : `O_(3)+2H^(+)+2e^(-)rarrO_(2)H_(2)O` , `H_(2)O_(2)rarrO_(2)2H^(-)+2e^(-)`
Promotional Banner

Topper's Solved these Questions

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise APSP (Part-II)|23 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise APSP (Part-III)|12 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise Exercise -3 (JEE(MAIN) Online problems)|10 Videos

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Advanced Level Problems|88 Videos

  • FUNDAMENTAL CONCEPT

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Fundamental Concept )|40 Videos

Similar Questions

Explore conceptually related problems

How many gram of H_(2)O are present in 0.2 mole of it

During an electrolysis of conc. H_(2)SO_(4) , peroxydisulphuric acid (H_(2)S_(2)O_(8)) and O_(2) form in an equimolar amount. The moles of H_(2) that will be formed simultaneously will be

The oxidation state of S in H_(2)S_(2)O_(8) is

The number of gm atoms of oxygen present in 0.2 mole of H_(2)S_(2)O_(8) is.

Equation H_(2)S+H_(2)O_(2) rarr S+2H_(2)O represents

In the reaction. H_(2)S+H_(2)O_(2) rarr S+2H_(2)O describes

How many moles of H_(2)O are liberated when one mole hydrated MgCl_(2) is heated?

How many moles of H_(2)O are liberated when one mole hydrated MgCl_(2) is heated?

How many moles of H_(2)O are liberated when one mole hydrated MgCl_(2) is heated?

During an electrolysis of conc H_(2)SO_(4) , perdisulphuric acid (H_(2)S_(2)_(8)) and O_(2) are formed in equimolar amount. The moles of H_(2) that will be formed simultaneously will be a. Thrice that of O_(2)" "b. Twice that of O_(2) c. Equal to that of O_(2)." "d. Half of that of O_(2)

RESONANCE ENGLISH-EQUIVALENT CONCEPT & TITRATIONS-APSP (Part-I)
  1. Calculate the mass of CaO required to remove the hardness of 1000,000 ...

    Text Solution

    |

  2. A 5.0 mL solution of H(2)O(2) liberates 1.27 g of iodine from an acidi...

    Text Solution

    |

  3. When hypo solution is added to KMnO(4) solution then

    Text Solution

    |

  4. Which of the following equations is a balanced one -

    Text Solution

    |

  5. 10ml of sulphuric acid solution (sp.gr.=1.84) contains 98% weight of p...

    Text Solution

    |

  6. The equivalent mass of MnSO4 is half of its molecular mass when it is ...

    Text Solution

    |

  7. An aqueous solution of 6.3 gm oxalic acid dihydrate is made upto Th...

    Text Solution

    |

  8. During the electrolysis of conc H(2)SO(4), it was found that H(2)S(2)...

    Text Solution

    |

  9. 1 mole of how many of the following acids neutralize exactly one mol ...

    Text Solution

    |

  10. CrO(5) has structure as shown The oxidation number of chromium in...

    Text Solution

    |

  11. The normality of orthophosphoric acid having purity of 70% by weight...

    Text Solution

    |

  12. Objective question (single correct answer). i. H(3) PO(4) is a triba...

    Text Solution

    |

  13. The reagent commonly used to determine hardness of water titrimetrical...

    Text Solution

    |

  14. 20 mL of 0.1 M solution of compound NaCO(3).NaHCO(3).2H(2)O is titrate...

    Text Solution

    |

  15. In the following reaction 2MnO(4^(-))+5H(2)O(2)^(18)+6H^(+)rarr2Mn^(2+...

    Text Solution

    |

  16. One gram equimolecular mixture of Na(2)CO(3) and NaHCO(3)is reacted wi...

    Text Solution

    |

  17. Which of the following is not a redox reaction ?

    Text Solution

    |

  18. Equivalent weight of chlorine molecule in the equation is : 3Cl(2)+6...

    Text Solution

    |

  19. Cr(2)O(7)^(2-)overset(H^(+))rarrCr^(3+), Eq. wt. of Cr(2)O(7)^(2-) is ...

    Text Solution

    |

  20. One mole of acidified K2Cr2O7 on reaction with excess KI will liberate...

    Text Solution

    |