Question

storyline 1 exam
use naming rules to explain why the following statement is not correct
\the name of the formula pbcl₄ is lead tetrachloride\.

Explanation:

Lead (\(Pb\)) is a transition metal with variable oxidation states. For compounds of transition metals, the Stock system (using Roman numerals to indicate the oxidation state of the metal) should be used. In \(PbCl_4\), the oxidation state of \(Pb\) is \(+4\). The correct name should be lead(IV) chloride, not lead tetrachloride. The term "tetra - " is used in the naming of non - metal compounds (e.g., in covalent compounds between non - metals like \(CCl_4\) which is carbon tetrachloride). Since \(Pb\) is a metal and forms an ionic compound with \(Cl\) (in \(PbCl_4\), although it has some covalent character due to the high charge on \(Pb^{4 + }\)), the Stock system is appropriate.

Answer:

The statement is incorrect. The correct name is lead(IV) chloride. The use of "tetra - " is inappropriate for a metal - non - metal compound where the metal (\(Pb\)) has a variable oxidation state. The Stock system (using Roman numerals for the metal's oxidation state) should be applied.