In which of the following molecules, all bond lengths are not equal?

In which of the following molecules, all bond lengths are not equal?
  1. $SF_6$
  2. $PCl_5$
  3. $BCl_3$
  4. $CCl_4$

Solution

In $\mathrm{PCl}_5$ bond length of axial bond is greater than the length of equatorial bond.

Asked in: AP EAMCET 2016

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