Question

Q32.(i) What do you mean by CFSE?
(1) Explain why [Ni(CN)ATP is a square planer but [Nicil is tetrahedral complex??
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Answer 1

Answer:

crystal field stabilisation energy

Explanation:

crystal field stabilisation energy

The crystal field stabilisation energy (CFSE) is the gain in the energy achieved by preferential filling up of orbitals by electrons. It is usually less than or equal to 0. When it is equal to 0, the complex is unstable. The magnitude of CFSE depends on the number and nature of ligands and the geometry of the complex.

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Answer 2

Explanation:

3a²(c-b) + 3b²(a-c) +3c²(b-a)

Step-by-step explanation:

(a−b)³+(b−c)³+(c−a)³

=(a³−3a²b+3ab²−b³)+(b³−3b²c+3bc²−c³) + (c³−3c²a+3ca²−a³)

=-3a²b+3ab²-3b²c+3bc²-3c²a+3ca²

= 3a²(c-b) + 3b²(a-c) +3c²(b-a)