Question

bcl₃ is the product of boron and chlorine atoms. what is the name of this product?
○ boron chloride
○ boron trichloride
○ boron (iii) chloride
○ boron (3) chloride

Explanation:

For binary covalent compounds (compounds formed between two non - metals), the naming convention is to use prefixes to indicate the number of each atom. In \(BCl_3\), there is 1 boron atom (no prefix for 1 in the first element) and 3 chlorine atoms. The prefix for 3 is "tri -". So the name is boron trichloride. Boron (III) chloride is an incorrect naming for this covalent compound as Roman numerals are used for ionic compounds with variable charge metals (boron is not a metal in the context of forming such an ionic compound here). Boron chloride is too general as it doesn't specify the number of chlorine atoms. Boron (3) chloride is an incorrect notation.

Answer:

boron trichloride