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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Nargis sultana Best Answer
for gammow teller rule, ∆I=+ or - 1..here, I means spin of the nucleus... here spin changes from 2 to 3 so ∆I=-1 ..thus it is allowed by GT rule only...not fermi selection rule (∆I=0)...option c