Question

Cyanogen(CN)2 is known as a pseudohalogen because it has some properties similar to
halogens. It is composed of two CN's joined together. Do the two CN's join through the carbon
or the nitrogen (i. e., C – N –N – C or N – C – C – N)?

Answer 1

through C-C bond as C-C bond is stronger then C-N bond.

Answer 2

NC-CN. But I don't think it is a pseudohalide.