{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2026-07-03T07:17:40.821Z","dateModified":"2026-07-03T07:17:40.821Z","typicalAgeRange":"11-18","educationalLevel":"CPET","assesses":"Chemistry - The p-Block Elements","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"The p-Block Elements"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Chemistry"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"CPET"}],"name":"Quiz about The p-Block Elements","about":{"@type":"Thing","name":"Chemistry - The p-Block Elements"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About The p-Block Elements","text":"Among the following pentachlorides, which one does not exist due to the inert pair effect?}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"Think about which group 15 element shows the strongest inert pair effect."},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

PCl5

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

BiCl5

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

SbCl5

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

AsCl5

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

BiCl5

","comment":{"@type":"Comment","text":"Think about which group 15 element shows the strongest inert pair effect."},"answerExplanation":{"@type":"comment","text":"BiF5 exists (F stabilizes +5 via strong bonds), but Bi-Cl bonds are too weak, and Bi(V) oxidizes Cl- to Cl2, leaving BiCl3.\\[\\boxed{BiCl_5}\\]"}}}]}

Among the following pentachlorides, which one does not exist due to the inert pair effect?

Show Hint

The Correct Option is B

Solution and Explanation

Top Questions on The p-Block Elements

Questions Asked in CPET exam