3 moles of metal complex with formula Co ( en ) 2 Cl 3 gives 3 moles of silver chloride on treatment with…

3 moles of metal complex with formula Co(en)2Cl3 gives 3 moles of silver chloride on treatment with excess of silver nitrate. The secondary valency of Co in the complex is (Round off to the nearest integer)

Solution

3Co(en)2Cl2Cl+AgNO3 (excess)→3AgCl (white ppt. )

Secondary valency is equal to coordination number of Co=6 

Asked in: JEE Main 2021 (27 Jul Shift 2)

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