The optically active species among the following is :

CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

The optically active species among the following is : (1)

[\text{Cr}(\text{NH}_3)_6]^{3+}

(2)

[\text{Co}(\text{CN})_6]^{3-}

(3)

[\text{Co}(\text{gly})_3]

(4)

[\text{Ru}(\text{NH}_3)_6]^{3+}