Home
Class 12
CHEMISTRY
The bond enerhies of F2, Cl2, Br2 and I2...

The bond enerhies of `F_2, Cl_2, Br_2` and `I_2` are 155.4, 243.6, 193.2 and 151.2 kJ `mol^-1` respectively.The strongest bond is:

A

F-F

B

Cl-Cl

C

Br-Br

D

I-I

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    MBD PUBLICATION|Exercise Question Bank|390 Videos

  • TRANSITION METALS (d-BLOCK ELEMENTS)

    MBD PUBLICATION|Exercise QUESTION BANK|1320 Videos

Similar Questions

Explore conceptually related problems

The bond order of C_2^+ is :

Give the bond energies of N equiv N, H-H and N-H bonds as 945, 436 and 391 kJ mol^-1 respectively, the enthalpy of the following reaction N 2(g) ​ +3H 2(g) ​ →2NH 3(g) ​ is:

If S^@ for H_2, Cl_2 and HCl are 0.13, 0.22 and 0.19 kJ K^-1 mol^-1 respectively. The total change in standard entropy for the reaction, H_2+Cl_2rarr2HCl is:

The energies of activation for forward and reverse reaction A_2 + B_2 harr 2AB are 180 KJ mol^-1 and 200KJ mol^-1 respectively. The pressure of a catalyst lowers the energy of acvtivation of both (forward and backward) reactions by 100 KJ mol^-1 . The enthalpy change of the reaction (A_2 + B_2) rarr 2AB in the presence of catalyst will be (in KJ mol^-1 )

Heat evolved in the reaction, H_2+Cl_2rarr2HCl is 182 kJ. Bond energies of H-H and Cl-Cl are 430 and 242 kJ/mol respectively. The H-Cl bond energy is:

The values of Lambda_m^@ for NH_4Cl , NaOH and NaCl are 120.6, 248.2 and 136.4 ohm^-1 cm^2 mol^-1 respectively. Calculate Lambda_m^@ for NH_4OH .

The enthalpies of formation of N_2O and NO are 28 and 90 kJ mol^-1 respectively. The enthalpy of the reactioin, 2N_2O(g)+O_2(g)rarr4NO(g) is equal to:

The O - O bond length in H_2O_2 is :

The bonds present in N _2O_5 are :

MBD PUBLICATION-THERMODYNAMICS-Question Bank
  1. The enthalpy change of a reaction does not depand on:

    Text Solution

    |

  2. The triangleH for the process, CH3COOHrarrCH3COO^(-)+H^+ is:

    Text Solution

    |

  3. The bond enerhies of F2, Cl2, Br2 and I2 are 155.4, 243.6, 193.2 and 1...

    Text Solution

    |

  4. For the reaction, N2(g)+3H2(g)rarr2NH3(g), which is true:

    Text Solution

    |

  5. Hess's law is related to:

    Text Solution

    |

  6. The heat released during neutralisation is constant for the reaction o...

    Text Solution

    |

  7. Evaporation of water is:

    Text Solution

    |

  8. At constant P and T which statement is correct for the reaction, CO(g)...

    Text Solution

    |

  9. The difference between triangleH and triangleU is equal to:

    Text Solution

    |

  10. 1 mole of gas occupying 3 litre volume is expanded against a constant ...

    Text Solution

    |

  11. For a reaction at 25^@C enthalpy change (triangleH) and entropy change...

    Text Solution

    |

  12. 1 mole of an ideal gas at 25^@C is subjected to expand reversibly ten ...

    Text Solution

    |

  13. The entropy change for the reaction given below is: 2H2(g)+O2(g)rarr...

    Text Solution

    |

  14. The temperature at which the reaction, Ag2O(s)rarr2Ag(s)+I//2O2(g) is ...

    Text Solution

    |

  15. The ionisation energy of solid NaCl is 180 kcal, per mol. The dissolut...

    Text Solution

    |

  16. If the enthalpy change for the reaction CH4(g)+Cl2(g)rarrCH3Cl(g)+HCl(...

    Text Solution

    |

  17. The standard heat of formation of sodium ions in aqueous solution fro...

    Text Solution

    |

  18. For a diatomic molecule AB, the electronegativity difference between A...

    Text Solution

    |

  19. If heat of neutralisation is -13.7 k cal and Hf^(@)H2O=-68 k cal, then...

    Text Solution

    |

  20. The dissociation energy of CH4 and C2H6 are respectively 360and 620 k...

    Text Solution

    |