PCl_5 is possible but NCl_5 does not exist :
PCl5 is possible but NCl5 does not exist :
(a) in N, d-sub-shell is absent
(b) ionization energy of N is very high
(c) it does not like Cl
(d) None of these
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(a) NCl5 in not possible because N does not contain d-orbitals. Only nitrogen has a tendency to form pπ – pπ multiple bonds. Other forms dπ –pπ multiple bonds easily
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