Question : Which is the IUPAC group prefix of Acyl halide compounds?
Option 1: Alkoxy Carbonyl
Option 2: Carbamoyl
Option 3: Cyano
Option 4: Halo Carbonyl
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Correct Answer: Halo Carbonyl
Solution : The correct option is Halo Carbonyl .
An acyl halide group is represented with a prefix such as "Fluoro Carbonyl-", "Chloro carbonyl-", "Bromo carbonyl-" or "Iodo carbonyl-" when related to a substituting group or when another group is present that has priority for citation as a principal group. The prefix would be "Halo Carbonyl-" and the suffix would be "oyl halide".
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