Question

some of following that are expected to behave as oxidising agent is: Sn4+, Sn2+, Pb2+, TI3+, Pb4+, TI+ why sn4+ is not an oxidising agent

Answer 1

 NOT AN OXIDISING MEANS REDUCING 

REDUCING AGENT WILL OXIDISE ITSELF

OXIDISE =  LOSS OF ELECTRON 

SO ,WRITE THERE ELECTRONIC CONFIGURATION AND FIND OUT !

 Tl = 6S^2 6P^1

Tl +3 = 6S^0 6P^0

SO, IT CANT LOSE ELECTRONS MORE  [ OTHER ELECTRONS ARE IN INNER ORBIT]

SO THIS IS ONE OF THE ANSWER

THANK ME LATER!