The primary and secondary valencies of cobalt respectively in [Co(NH3)5CI]Cl2 are: (A) 3 and 5 (B) 2 — JEE Mains Chemistry Past Papers Chemistry Question
Question
The primary and secondary valencies of cobalt respectively in [Co(NH3)5CI]Cl2 are: (A) 3 and 5 (B) 2 and 6 (C) 2 and 8 (D) 3 and 6
Answer: D
💡 Solution & Explanation
Primary valency = Oxidation number of central metal. Secondary valency = Co-ordination number of central metal In [Co(NH3)5Cl]Cl2 Primary valency = 3 Secondary valency = 6 | JEE(Main) 2023 | DATE : 24-01-2023 (SHIFT-1) | PAPER-1 | CHEMISTRY PAGE # 7
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