Home
Class 12
CHEMISTRY
The following are some statements about ...

The following are some statements about Voltaic cell
I) Chemical energy converted into electrical energy
II) Electrons flows from anode to cathode
III) Oxidation occurs at anode
IV) Anode is negative and cathode is positive
The correct answer is

A

Only I & III are corrent

B

Only I, II & III are correct

C

Only I, III & IV are correct

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTRO CHEMISTRY

    NARAYNA|Exercise AIEEE & JEE MAIN PREVIOUS|38 Videos
  • ELECTRO CHEMISTRY

    NARAYNA|Exercise NCERT BASED QUESTIONS|8 Videos
  • ELECTRO CHEMISTRY

    NARAYNA|Exercise LEVEL-II(C.W)|61 Videos
  • 15TH GROUP ELEMENTS

    NARAYNA|Exercise EXERCISE - 4 (NCERT EXEMPLERS/HOTs)|27 Videos

Similar Questions

Explore conceptually related problems

The following are some statements about electrolytic cell A) In this, chemical energy converted into electrical enegy B) In this cell, electrons flow from cathode to anode through external circuit C) In this cell reduction takes place at cathode D) In this, cathode is a +ve electrode The correct combination is

The following are some statements about electrolysis I) Involves flow of electrons from anode to cathode II) Involves no chemical reaction at electrodes III) Oxidation occurs at anode and reduction at cathode IV) Anions migrate towards cathods The correct combination is

Choose the correct statement : - (A) In case of an electric cell, chemical energy is converted into electrical energy. (B) combination of electric cells is called battery.

Correct statements about a voltage (galvanic) ell include which of the following? (P) Oxidation occurs at the anode. (Q) Electrons flow from the cathode at the anode.

The following are some statements about normal hydrogen electrode a) when a Zn electrode is in combination of NHE, Zn electrode acts as cathode b) when a Cu electrod is in combination with NHE, Cu electrode is the anod c) When a ''Ag'' electrode is in combination with NHE,Ag electrode is the anode d) When a chlorine electrode is in combination with NHE, chlorine electrode is the anode

A: Anode is positive electrode and cathode is negative electrode in electrolytic cell. R: Anode is negative electrode and cathode is positive electrode in electrochemical cell.

NARAYNA- ELECTRO CHEMISTRY-LEVEL-III
  1. A galvanic cell is compsed of two hydrogen electrodes, one of which is...

    Text Solution

    |

  2. The following facts have been observed: 2X^(-)+Y(2)rarr2Y^(-)+X(2) ...

    Text Solution

    |

  3. Two weak acid solutions HA(1) and HA(2) with the same concentration an...

    Text Solution

    |

  4. The standard reduction potential for Zn^(2+)//Zn, Ni^(2+)//Ni and Fe^(...

    Text Solution

    |

  5. What will be the emf for the given cell ? Pt|H(2)(g,P(1))|H^(+)(aq)|...

    Text Solution

    |

  6. The negative Zn pole of Daniell cell, sending a constant current throu...

    Text Solution

    |

  7. Given the data at 25^(@)C Ag+I^(-)rarrAgl+e^(-)" "E^(@)=0.152V A...

    Text Solution

    |

  8. In a fuel cell methanol is used as fuel and oxygen gas is used as an o...

    Text Solution

    |

  9. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as ...

    Text Solution

    |

  10. The following are some statements about Voltaic cell I) Chemical ene...

    Text Solution

    |

  11. In an electrochemical process, a salt bridge is used:

    Text Solution

    |

  12. During the working of a galvanic cell and with the passage of time : ...

    Text Solution

    |

  13. Following are some of the facts about a dry cell I : It is alos call...

    Text Solution

    |

  14. The following are some statements about electrolysis I) Involves flo...

    Text Solution

    |

  15. For the following cell reaction, Ag | Ag^(+) | AgCl | Cl^(-) | Cl(2) ,...

    Text Solution

    |

  16. The half cell reaction for rusting of iron are: 2H^(+)+2e^(-)+(1)/(2...

    Text Solution

    |

  17. The metal that cannot obtained by electrolysis of an aqueous solution ...

    Text Solution

    |

  18. Resistance of 0.2 M solution of an electrolue is 50 Omega. The speci...

    Text Solution

    |

  19. Given E("Cr(2)O(7)^(2-)//Cr^(3+))^(@)=1.33V,E(MnO(4)^(-)//Mn^(2+))^(@)...

    Text Solution

    |

  20. The reduction potential of hydrogen half cell will be negative if :

    Text Solution

    |