21 Which of the following metal ion forms unstable Cu in

Last updated: 7/2/2023

21 Which of the following metal ion forms unstable Cu in this und complex with CN 1 Ag 1 CU CCN 2 Zn II 3 Cu II 4 Cr 1 22 Which of the following ion does not exist 1 Cul 2 VO 3 WO 2 4 CrO 2