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AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure

The hybridisation of atom ' \(X\) ' with atomic number 27 in \(\left[X \mathrm{~F}_6\right]^{3-}\) is

  1. A \(d s p^2\)
  2. B \(d^2 s p^3\)
  3. C \(s p^3 d^2\)
  4. D \(s p^3\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(s p^3 d^2\)

Step-by-step Solution

Detailed explanation

The atomic number of Co is 27 and its valence shell electronic configuration is \(3 d^7 4 s^2\). Hence, \(X=\) Co atom and \(\left[\left(\mathrm{CoF}_6\right)^{3+}\right]\) complex have \(s p^3 d^2\) hybridisation and shape is octahedral.