Write the decreasing order of (a) carbon-carbon and (b) carbon- hydrogen bond lengths in ethane, ethylene and acetylene molecules.

Write the decreasing order of (a) carbon-carbon and (b) carbon- hydrog

1.	Write the decreasing order of (a) carbon-carbon and (b) carbon- hydrogen bond lengths in ethane, ethylene and acetylene molecules.
Answer» Solution :Carbon carbon bond LENGTHS are: `C_(2)H_(6)gtH_(2)H_(4)gtH_(2)H_(2)` `1.54"pm"""134"pm"""120"pm"` Carbon hydrogen bond lengths are: `C_(2)H_(6)gtC_(2)H_(4)gtC_(2)H_(4)` `110"pm"""109"pm"""106"pm"`