1.Which of the following compounds shows optical isomerism?a.[Cu(NH3_33)4_44]2+^{2+}2+b.[ZnCl4_44]2−^{2-}2−c.[Cr(C2_22O4_44)3_33]3−^{3-}3−d.[Co(CN)6_66]3−^{3-}3−Login to continueOnly logged in users canattempt or see the solution.