Question

The IUPAC name of the compound $CNC{{H}_{2}}CHCNC{{H}_{2}}CN$ is

• A. 1,2,3-tricyanopropane
• B. 1,2,3-cyanopropane
• C. 1,2,3-propane trinitrile
• D. 3-cyano-1,5-dinitrile

Answer 1

Answer: (B)

$\underset{CN}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{CN}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{CN}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,$ IUPAC name 1,2.3-tricyanopropane According to modern recommendations, if there are more than two same functional groups in a compound, they are not included in the root chain.