JEE Main 2019 — p Block Elements (Group 13 & 14) Question with Solution
JEE Main 2019 (12 Apr Shift 2)
Question
The bond length is maximum in:
Choose an option
Show full solutionCorrect option: D
Correct answer
Ddiamond
Step-by-step explanation
In diamond, all carbons are hybridised and hence bond lengths are similar to carbon-carbon single bonds.
Graphite, and forms of carbon have delocalisation of electrons which leads to double bond characteristics. Hence, their bond lengths are in between carbon-carbon single and double bonds.
Hence, diamond with only single bond character will be have the longest bond.
Graphite, and forms of carbon have delocalisation of electrons which leads to double bond characteristics. Hence, their bond lengths are in between carbon-carbon single and double bonds.
Hence, diamond with only single bond character will be have the longest bond.
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This is a previous-year question from JEE Main 2019, covering the p Block Elements (Group 13 & 14) 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.