Q. 17

(a) Write the hyb

Answer :

a i)




Fluoride is a weak ligand and it is unable to bind the inner d orbitals. Cobalt ion has 6 electrons in its 3d orbital in which 4 are unpaired. The Flouride ion pair with the 3d electrons by utilising 1 4s, 3 4p and 2 4d electrons for the hybridisation. Thus, the hybridisation is .


Shape is Octahedral


IUPAC name is hexafluorocobalt(3-)


ii)




The electronic configuration of Nickel ion is . Each hybrid orbital is occupied by a pair of electrons from each cyanide molecule. Thus, the hybridisation is . Shape is Square planar IUPAC name is Tetracyanonickelate(II)


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