Which specific organic functional group is characterized by a carbon-to-nitrogen triple bond (C N)?

Question

ScanSolve AI Tutor · Accepted Answer

The question asks to identify the organic functional group characterized by a carbon-to-nitrogen triple bond ( $C \equiv N$ ).

Define each functional group provided in the options.
- Amide: An amide functional group contains a carbonyl group ( $C=O$ ) bonded to a nitrogen atom. Its general structure is $R-CO-NR'_2$ .
- Amine: An amine functional group contains a nitrogen atom bonded to one or more alkyl or aryl groups. Its general structure is $R-NH_2$ , $R_2NH$ , or $R_3N$ .
- Nitro: A nitro functional group consists of a nitrogen atom bonded to two oxygen atoms, with one double bond and one single bond, and a positive charge on the nitrogen. Its general structure is $R-NO_2$ .
- Nitrile: A nitrile functional group contains a carbon atom triple-bonded to a nitrogen atom. Its general structure is $R-C \equiv N$ .
Compare the definitions with the given characteristic.
The question specifically states a "carbon-to-nitrogen triple bond ( $C \equiv N$ )". This structure directly matches the definition of a nitrile functional group.

The final answer is $\text{D. Nitrile}$

Answer