Question
The bond dissociation energy of H - H, C - C, and C - H bonds respectively are 104.2, 83.1 and 98.8 kcal/ mole. The electronegativity of C is?
Answer: Option A
:
A
△ = EC−H - √EH−H×EC−C
= 98.8 - [(104.2)×(83.1)]12 = 5.75 kcal.
(XC−H) E.N of C-H bond = 0.218 √△ = 0.218 (5.75)12
= 0.43
XC = 0.43 +XH = 0.43 + 2.1 = 2.53
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:
A
△ = EC−H - √EH−H×EC−C
= 98.8 - [(104.2)×(83.1)]12 = 5.75 kcal.
(XC−H) E.N of C-H bond = 0.218 √△ = 0.218 (5.75)12
= 0.43
XC = 0.43 +XH = 0.43 + 2.1 = 2.53
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