Which of the following compound contain most electronegative carbon atom?

detailed solution

Correct option is C

[Step 1]:Electronegativity of carbon atom depend upon the % s-character.More the % s-character more is the electronegativity of carbon atom.[Step 2]:in option (1)  CH3−CH3 two carbons are SP3   % s-character is 25%.[Step 3]:in option (2) CH2=CH2  two carbons are SP2  % s-character is 33%.in option (3) CH≡CH  two carbons are SP  % s-character is 50%.   it contains more electronegative carbon atoms.[Step 5]:in option (4) CH4  carbon is SP3  % s-character is 25%.