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Which of the following statements is not correct form the view point of molecular orbital theory ?A. `Be_(2)` is not a stable moleculeB. `He_(2)` is not stable but `He_(2) ^(+)` is expected to existC. Bond strength of `N_(2)` is maximum amongst to homonuclear diatomic molecular belonging to the second periodD. The order of energies of molecular obitals in `N_(2)` molecule is ` sigma 2slt sigma^(**) 2s lt sigma 2p_(z) lt (pi 2p_(x) = pi 2p_(y))` `lt (pi^(**) 2p_(x) = pi^(**) 2p_(y)) lt sigma^(**) 2p_(z)` |
Answer» Correct Answer - D The correct order of energies of molecular orbitals in `N_(2)` molecule is `sigma _(2s) lt sigma_(2s)^(**) lt (pi_(2_(p_(x))) = pi_(2_(p_(y)))) lt sigma _(2_(p_(z)))lt (pi_(2_(p_(x)))^(**) = pi_(2_(p_(y)))^(**)) lt sigma_(2_(p_(z)))^(**)` |
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