What is the order of C-H bond length in C2H6 and C2H4 and C2H2?



What is the order of C-H bond length in C2H6 and C2H4 and C2H2?..

Answer / Dilip Singh

The carbon-hydrogen (C-H) bond lengths in alkanes decrease as follows: C2H2 (acetylene) > C2H4 (ethylene) > C2H6 (ethane). This trend occurs because the multiple bonds in acetylene and ethylene result in a smaller electron cloud surrounding the carbon atom, leading to shorter bond lengths.

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