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Question
Electronegativity of carbon atoms depends upon their state of hybridisation. In which of the following compounds, the carbon marked with asterisk is most electronegative?
Options
CH3 – CH2 – *CH2 –CH3
CH3 – *CH = CH – CH3
CH3 – CH2 – C ≡ *CH
CH3 – CH2 – CH = *CH2
Solution
CH3 – CH2 – C ≡ *CH
Explanation:
Electronegativity increases as the state of hybridization changes from sp3 to sp2 and sp2 to sp. Thus, sp hybridized carbon has the highest electronegativity.
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