JAMB Chemistry 2008 Objective — Question 23

Question 23 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2008 Objective paper, with the correct answer and a full explanation.

What is the IUPAC nomenclature of the compound NaClO?

A. Sodium oxochlorate (I)Correct
B. Sodium chloro(I) oxide
C. Sodium monooxochlorate (II)
D. Sodium chloro (I) monoxide

Explanation

NaClO is sodium oxochlorate (I). The 'sodium', 'oxo' and 'chlorate' parts suggest clearly, that elements sodium, oxygen and chlorine are present. The oxidation number of chlorine is calculated: NaClO: Na=+1, O=-2, so Cl-1=0, Cl=+1.

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