JEE Main 2021ChemistryCoordination CompoundsEasyNumerical

JEE Main 2021Coordination Compounds Question with Solution

JEE Main 2021 (27 Jul Shift 2)

Question

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)

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Show full solutionCorrect answer: 6
Correct answer
6

Step-by-step explanation

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

Secondary valency is equal to coordination number of Co=6 

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About this question

This is a previous-year question from JEE Main 2021, covering the Coordination Compounds chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.