Multiple choice

Which among the following is a pseudohalogen?

  1. Copper(I) sulfide

  2. Copper monosulfide

  3. Cyanogen

  4. Cyanuric chloride

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cyanogen is the chemical compound with the formula (CN)2. It is a colourless, toxic gas with a pungent odour. The molecule is a pseudohalogen. Cyanogen molecules consist of two CN groups — analogous to diatomic halogen molecules, such as Cl2, but far less oxidizing.