Year: 2018
Topic: Coordination Compounds
Time :
1.
Which one of the following ions exhibits d-d transition and paramagnetism as well ?
(1). \(\text{MnO}_4^{2-}\)
(2). \(\text{MnO}_4^{-}\)
(3). \(\text{Cr}_2 \text{O}_7^{2-}\)
(4). \(\text{CrO}_4^{2-}\)