Chapter 20, Problem 32E

Interpretation Introduction

Interpretation: The oxidation states of thallium and indium is given. The formula and name of the possible compounds formed between thallium and oxygen and between indium and chlorine is to be stated.

Concept introduction: Thallium and indium are group $3\text{A}$ elements and exhibits $+1$ and $+3$ oxidation state.

Rules for binary compound,

• In the naming of binary compound, the name of cation comes first which is the name of element. Anion is named second which is also the name of element. Anions are named with the ending -ide.
• If the cation exhibits more than one oxidation state, the Roman numeral is used to show the charge on cation.

To determine: The formula and the name of the possible compounds formed between thallium and oxygen and between indium and chlorine.