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lakaralake11
25.07.2019 •
Chemistry
List these compounds in order of decreasing carbon–carbon bond strength: hcch, h2cch2, h3cch3. rank from strongest to weakest.
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Ответ:
HCCH > H₂CCH₂ > H₃CCH₃
Strongest > Weakest
Explanation:
Ethyne has triple bond, one sigma bond and two pi bonds, Hence, a greater overlap is found between two carbon atoms which resulted in shortening the bond length (i.e 1.9 Angstrome). Also carbon carbon triple bond has highest force constant value i.e 15 ×10⁵ dyne/cm which is greater than carbon carbon double bond (10 ×10⁵ dyne/cm) and single bond (5 × 10⁵ dyne/cm).
Ответ: