Which one below is a pseudohalide

Options

A. `CN^(-)`
B. `Br_(3)^(-)`
C. `Icl_(2)^(-)`
D. `I_(3)^(-)`\

Answer

A

Explanation

Pseudohalide ions and pseudohalogens
There are certain monovalent nagative ions made up of two or more electronegative atoms which exhibit properties similar to these of halide ions. Such ions are known as pseudo halide ions just as halide ions. ions, pseudo halide ions have also corresponding dimoric molecules. these are called pseudo halide ions have also corresponding dimoric molecules. these are called pseudo halogens and show properties similar to those of halogens.
`{:(pseudohali de,Pseudohalo g ens),(CN^(-)cyni de,(CH)_2Cyanog en),(SCN^(-)Thiocyanate,(SCN)_2Thiocyanog en):}`