Home
Class 11
CHEMISTRY
The bond energies of H-H, X-X and H-X ar...

The bond energies of H-H, X-X and H-X are `104 K.cal, 38 K.cal` and `138 K.Cal` respectively the electron egativity of 'X' is `[sqrt(67) = 8.18]`

A

`3.0`

B

`3.5`

C

`3.8`

D

`1.7`

Text Solution

Verified by Experts

The correct Answer is:
C
`X_(A)-X_(B)=0.208 sqrt(Delta)X_(A)-X_(B)0.208 sqrt(67)`
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NARAYNA|Exercise EXERCISE - 3|17 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NARAYNA|Exercise EXERCISE - 4|17 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NARAYNA|Exercise EXERCISE - 2 (C.W)|41 Videos

  • CHEMICAL EQUILIBRIUM

    NARAYNA|Exercise Exercise -IV|33 Videos

  • ENVIRONMENTAL CHEMISTRY

    NARAYNA|Exercise EXCERCISE - IV (NCERT EXEMPLAR QUESTIONS)|7 Videos

Similar Questions

Explore conceptually related problems

The Bond energy of C=C, C-C, C-H and H-H are 147, 83, 99 and 104 kcal/mol respectively then calculate heat of hydrogen of ethene.

The heat of formation of ethane is -19.46 kcal . Bond enegries of H-H, C -H and C- C bonds are 104.18, 99.0 and 80.0 kcal , respectively. Calculate the heat of atomisation of graphite.

Bond energy H-H,F-F and H-F bonds are 104, 38 and 135 Kcal "mol"^(-1) , respectively. The resonance energy in the H-F molecule will be

The experimental bond energy of HY differs from its calculated valueby 1.96 k.cals//"mole" . The electronegativity of 'y' is equal to

Find Delta_(f)H of HCl (g) if bond energies of H_(2), Cl_(2) and HCl are 104, 58, 103 kcal/mol respectively.

The bond energy of H_(2) is 104.3 k.cal mol^(-1) . It means that

H-H, X-X and H-X bond energies are 104 Kcal//"mole" 60 Kcal//"mole" and 101kcal//"mole" . Assuming the electronegativity of hydrogen to be 2.1 the electronegativity of unknown element X is (sqrt(19) = 4.36)

The heat of combustion of CH_(4(g)), C_((g)) and H_(2(g)) at 25^(@)C are -212.4 K cal, -94.0 K cal and -68.4 K cal respectively, the heat of formation of CH_(4) will be -

NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -EXERCISE - 2 (H.W)
  1. The correct order of atomic radii is

    Text Solution

    |

  2. In which of the following arrangements, the order is not correct accor...

    Text Solution

    |

  3. Successive ionisation potentials of an element M are 8.3,25.1,37.9,259...

    Text Solution

    |

  4. The IP(1),IP(2),IP(3) and IP(4) of an element A are 6.0, 10.0, 16.0 an...

    Text Solution

    |

  5. H-H, X-X and H-X bond energies are 104 Kcal//"mole" 60 Kcal//"mole" a...

    Text Solution

    |

  6. The ionisation energy and electron affinity of an element are 13.0ev a...

    Text Solution

    |

  7. The bond energies of H-H, X-X and H-X are 104 K.cal, 38 K.cal and 138 ...

    Text Solution

    |

  8. The atomic numbers of elements A,B,C and D are Z - 1, Z, Z + 1 and Z +...

    Text Solution

    |

  9. M((g)) rarr M((g))^(+) +e^(-), DeltaH = 100eV M((g)) rarr M((g))^(2+...

    Text Solution

    |

  10. The increasing order of the first ionization enthalpies of the element...

    Text Solution

    |

  11. Using the data given below,predict the nature of heat changes for the ...

    Text Solution

    |

  12. The IE1 " and " IE2 of Mg (g) are 740 and 1450 kJ "mol:^(-1) . Calcul...

    Text Solution

    |

  13. How many Cs atoms can be convered to Cs^(+) ions by 1 joule energy if ...

    Text Solution

    |

  14. The elecron affinity of chlorine is 3. 7 eV. How much energy in kcal i...

    Text Solution

    |

  15. The energy needed for Li((g))to Li((g))^(+3)+3e^(-) is 1.96xx10^(4)"K...

    Text Solution

    |

  16. Following statements regarding the periodic trends of chemical reactiv...

    Text Solution

    |

  17. Which of the following represent the correct order of increasing first...

    Text Solution

    |

  18. The correct sequence which shows decreasing order of the ionic radii o...

    Text Solution

    |

  19. The set representing the correct order of ionic radius is

    Text Solution

    |

  20. The charge/size ratio of a cation determines its polarising power. Whi...

    Text Solution

    |