{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2026-07-03T07:17:40.820Z","dateModified":"2026-07-03T07:17:40.820Z","typicalAgeRange":"11-18","educationalLevel":"CPET","assesses":"Chemistry - coordination compounds","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"coordination compounds"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Chemistry"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"CPET"}],"name":"Quiz about coordination compounds","about":{"@type":"Thing","name":"Chemistry - coordination compounds"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About coordination compounds","text":"The number of metal-metal bonds present in $$Ir_4(CO)_{12}$$ is:}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"A tetrahedral M4 cluster has six edges, one metal-metal bond per edge."},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":1,"encodingFormat":"text/markdown","text":"

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

","comment":{"@type":"Comment","text":"\"\""}}],"acceptedAnswer":{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

","comment":{"@type":"Comment","text":"A tetrahedral M4 cluster has six edges, one metal-metal bond per edge."},"answerExplanation":{"@type":"comment","text":"Electron counting: 4 Ir(9e)=36, 12 CO(2e)=24, total 60. 4x18-2n=60 => n=6 M-M bonds, matching tetrahedron edges.\\[\\boxed{6}\\]"}}}]}

The number of metal-metal bonds present in \(Ir_4(CO)_{12}\) is:

Show Hint

The Correct Option is D

Solution and Explanation

Top Questions on coordination compounds

Questions Asked in CPET exam