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The bond formed when the orbitals underg...

The bond formed when the orbitals undergo ‘end to end’ overlap is

A

`N_2`

B

`O_2`

C

`H_2O`

D

`H_2`

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What kind of a bond is formed when the orbitals of two atoms A and B undergo (i) s-s overlap (ii) s-p overlap?

What kind of a bond is formed when the orbitals of two atoms A and B undergo (i) s-soverlap (ii) s-p overlap?

Knowledge Check

  • A molecule (X) has (i) four sigma bonds formed by the overlap of sp and s orbitals (ii) one sigma bond formed by sp and sp orbitals and (iii) one bond formed by and p, orbitals. Which of the following is X?

    A
    `C_(2)H_(6)`
    B
    `C_(2)H_(3)CI`
    C
    `C_(2)H_(2)CI_(2)`
    D
    `C_(2)H_(4)`

  • In the formation of B-H-B bridge in diborane, the orbitals involved in overlapping are

    A
    1 s orbital of 'H' atom and one of the each `sp^3` hybrid orbital of Boron atoms containing one electron each
    B
    orbital of 'H' atom and one of the each vacant hybrid orbital of Boron atoms
    C
    ls orbital of 'H' atom and vacant orbital of one Boron and orbital of another boron containing one electron
    D
    1s orbital of 'H' atom and vacant orbital and orbital containing single electron of the same Boron atom

  • Bonding formation between two atoms is then envisaged as the progressive overlapping of an atomic orbital from each of the participating atoms, the greater the overlap achieved (the overlap integral), the stronger the bond so formed. For sigma bond formation the relative overlapping power of :

    A
    s-orbital is greater than p-orbitaJ because s-orbital are closer to nucleus
    B
    p-orbitals is greater than s-orbital because electrons of p-orbitals are oriented on internuclear axis
    C
    s-orbitals is greater than p-orbital because of spherical shape of s-orbital
    D
    p-orbital is greater than s-orbital because electrons of p-orbitals are oriiented on internuclear axis

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    The bond formed due to overlap of orbitals is known as

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    What type of bonds are formed due to orbital overlap?

    When half-filled valence orbital of one atom overlaps with half-filled valence orbital of other atom, a covalent bond is fonned. Head on or axial overlap leads to the fonnation of sigma bond. Sidewise or lateral overlap of atomic orbitals (p) give rise to the formation of pi -bond. Similarly side wise overlap between d-orbitals can lead to the fomation of delta -bond. In case of pi -bond, the probability of finding the shared electron cloud is zero along the line joining two nuclei while ithe probability of finding the shared electron cloud is maximum along the inter nuclear axis. The strength of bonds by s-s, p-p, s-p overlap is in the order :

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