Assertion : In tetrahedral complexes low spin configuration are rarely observed .
Reason : `Delta_(t) = ((4)/(9)) Delta_(0)`

Tetrahedral complexes do not show low spin configuration. Explain.

Statement-1: All tetrahedral complexes are mainly high spin and the low spin configurations are rarely observed. Statement-2: Delta_(t) is always much smaller even with stronger field ligands and it is never energetically favourable to pair up the electrons.

Assertion (A) : Low spin tetrahedral complexes are rarely observed. Reason (R) : Crystal field splitting is less than pairing energy for tetrahedral complexes.

Why are low spin tetrahedral complexes not formed?

Low spin configuration are rarely observed in tetrahedral coordination entity formation. Explain.