Question

The IUPAC name of $NC-C{H}_2-\underset{CN}{\underset{|}{CH}}-C{H}_2-CN$ is

• A. 3-Cyanopentane-1, 2-dinitile
• B. 1, 2, 3-Tricyanopropane
• C. Propane-1, 2, 3-tricarbonitrile
• D. Propane-1, 2, 3-triitrile

Answer 1

The correct option is C

Propane-1, 2, 3-tricarbonitrile

Here ,word root is prop

single bond $\Rightarrow$ ane (primary suffix)

NC- $\Rightarrow$ carbonitrile (secondary suffix)



$\Rightarrow$ 1,2,3-tricarbonitrile

Therefore,

propane -1,2,3-tricarbonitrile