HARDMCQ SINGLEJEE Mains ChemistryInorganic ChemistryCoordination compoundsAchiever Section

Which among the following will be named as dibromidobis-(ethylenediamine) chromium (III) bromide?

A.[Cr(en)₃]Br₂

B.[Cr(en)₂Br₂] Br✓ Correct

C.[Cr(en)Br₄]–

D.[Cr(en) Br₂] Br

Explanation

To name a coordination compound we first name the cation and then the anion. If the given cation is complex then we first name the ligands and arrange them in alphabetical order and then mention the oxidation state of the central atom in numerals in common brackets. Hence, the compound is 2 2 [Cr(en) Br ]Br . Hence, the correct answer is option (b) 25 COORDINATION COMPOUNDS

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