ASSERTION - in high spin situation the configuration of d5 ions will be t2g3 eg2
REASON- in high spin situation pairing energy is less than crystal field splitting energy
a). Both assertion and reason are true, and reason is the correct explanation of assertion.
b). Both assertion and reason are true, but reason is not the correct explanation of assertion.
c). Assertion is true but reason is false.
d). Both assertion and reason are false.