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(i) What is a pi-bond? (ii)Discuss the formation of N_(2) molecule using MO theory. |
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Answer» Solution :(i) PI-Bond: When two atomic orbitals overlap sideways, the resultaint covalet bond is called a pi `(pi)` bond. (ii) Formationof N, molecule using MO theory:  1. Electronic configuration of N atom `1S^(2)2s^(2)2P^(3)` . 2. Electronic confifuration of `N_(2)` molecule is `SIGMA1S^(2)sigmaast1s^(2)sigma2s^(2)sigmaast2s^(2)pi2p_(y)^(2)pi2p_(z)^(2)sigma2p_(x)^(2)` 3. Bond order `(N_(b)-(N_(a)))/(2) (10-4)/(2)=3` 4. Molecule has no unpaired ELECTRONES hence, it is diamagnetic. |
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