ABC26OR0042 · General Organic Chemistry

Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: General Organic Chemistry – General · Exam: CSIR-NET DEC 2016 · Marks: 2 · Difficulty: Hard

The correct order of the bond dissociation energies for the indicated C-H bond in following compounds is structure structure structure A B C
(a)C $>$ B $>$ A
(b)A $>$ B $>$ C
(c)A $>$ C $>$ B
(d)C $>$ A $>$ B
Answer
Answer (as printed): D
Explanation
Higher the $s$ character, stronger the bond and thus greater the dissociation energy. $s$ character increases as $sp$ (50%) $> sp^2$ (33%) $> sp^3$ (25%)

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