Home
Class 12
CHEMISTRY
The number of electrons delivered at the...

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is (charge of electron = `1.6xx 10^(-19)` C )

A

`6.22 xx 10^(23)`

B

`6.022 xx 10^(20)`

C

`3.75 xx 10^(20)`

D

`7.48 xx 10^(23)`

Text Solution

Verified by Experts

The correct Answer is:
C

Q =It
`= 1 A xx 60 `S
96500 C charge `-= 6.022 xx 10^(23)` electrons
60 C charge `-= (6.022xx10^(23))/(96500) xx 960`
`= 3.744 xx 10^(20)` electrons
Promotional Banner

Topper's Solved these Questions

  • ELECTRO CHEMISTRY

    NCERT TAMIL|Exercise EVALUATION ( SHORT ANSWER) |14 Videos
  • ELECTRO CHEMISTRY

    NCERT TAMIL|Exercise EVALUATE YOURSELF|1 Videos
  • D-BlOCK ELEMENTS

    NCERT TAMIL|Exercise SELF EVALUATION (EXERCISE PROBLEMS)|2 Videos
  • ELECTRO CHEMISTRY - I

    NCERT TAMIL|Exercise SELF EVALUATION((D) Solve the problems :)|10 Videos

Similar Questions

Explore conceptually related problems

The number of electrons delivered at the cathode during electrolysis by a current of 1A in 60 seconds is (charge of electron =1.6 times 10^(-19) C )

A flow of 10^(7) electrons per second in a conduction wire constitutes a current of

Determine the number of electrons flowing per second through a conductor, when a current of 32A flows through it.

In the Bohr model of hydrogen atom, the electron is treated as a particle going in a circle with the centre at the proton. The proton itself is assumed to be fixed in an inertial frame. The centripetal force is provided by the Coloumb attraction. In the ground state, the electron goes round the proton in a circle of radius 5.3xx10^-11m . Find the speed of the electron in the ground state. Mass of the electron =9.1xx10^-31 kg and charge of the electron = 1.6xx10^-19C .

Assertion: The drift speed of electrons in metals is of the order of few mm / s and charge of an electron is very small (1.6 xx 10^(-19) C) . Yet a large amount of current is obtained. Reason: At room temperature, the thermal speed of electron is very high ( 10^7 times the drift speed). Which one of the following statements is correct?

NCERT TAMIL-ELECTRO CHEMISTRY-EVALUATION
  1. The number of electrons that have a total charge of 9650 coulombs is

    Text Solution

    |

  2. Consider the following half cell reactions Mn^(2+) +2e^(-) rarr Mn E...

    Text Solution

    |

  3. The button cell used is watches function as follows Zn(s) +Ag(2) O (...

    Text Solution

    |

  4. The molar conductivity of a 0.5 mol dm^(-3) solution of AgNO^(3) with ...

    Text Solution

    |

  5. Calculate A("HoAC")^(@) using appropriate molar conductances of the el...

    Text Solution

    |

  6. Faradays constant is defined as

    Text Solution

    |

  7. How many faradays of electricity are required for the following reacti...

    Text Solution

    |

  8. A current strength of 3.86 A was passed through molten Calcium oxide f...

    Text Solution

    |

  9. During electrolysis of molten sodium chloride, the time required to pr...

    Text Solution

    |

  10. The number of electrons delivered at the cathode during electrolysis b...

    Text Solution

    |

  11. Which of the following electrolytic solution has the least specific co...

    Text Solution

    |

  12. While charging lead storage battery

    Text Solution

    |

  13. Among the following cells I) Leclanche cell II) Nickel – Cadmium c...

    Text Solution

    |

  14. Zinc can be coated on iron to produce galvanized iron but the reverse ...

    Text Solution

    |

  15. Assertion : pure iron when heated in dry air is converted with a layer...

    Text Solution

    |

  16. In H(2)-O(2)fuel cell the reaction occur at cathode is

    Text Solution

    |

  17. The equivalent conductance of M//36 solution of a weak monobasic acid ...

    Text Solution

    |

  18. A conductivity cell has been calibrated with a 0.01M, 1:1 electrolytic...

    Text Solution

    |

  19. In the electrochemical cell: Zn|ZnSO(4) (0.01M)||CuSO(4)(1.0M)|Cu the...

    Text Solution

    |

  20. Consider the change in oxidation state of Bromine corresponding to dif...

    Text Solution

    |