Question

Bivalent radical composite

Answer 1

Answer:

Bivalent and trivalent radicals derived from univalent acyclic hydrocarbon radicals whose authorized names end in "-yl" by removal of one or two hydrogen atoms from the carbon atom with the free valences are named by adding "-idene" or "-idyne", respectively, to the name of the corresponding univalent radical. The carbon atom with the free valence is numbered as 1.

Examples:

Methylidyne  

Ethylidene  

Ethylidyne  

Vinylidene  

Isopropylidene  

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