What is the chemical name for SnO2?
The Correct Answer and Explanation is:
The chemical name for SnO2 is Tin(IV) oxide. This compound consists of tin (Sn) and oxygen (O) in a 1:2 ratio, where tin has an oxidation state of +4, and oxygen has an oxidation state of -2. The Roman numeral (IV) in the name indicates that tin is in the +4 oxidation state. Tin can form multiple oxides, but SnO2 is the one where tin has its highest oxidation state of +4.
Explanation:
Tin (Sn) is a metal that belongs to Group 14 of the periodic table. In its elemental state, it is typically in the +2 oxidation state, forming compounds like SnO (Tin(II) oxide). However, tin can also form compounds where it has a +4 oxidation state, such as SnO2. This higher oxidation state occurs when tin loses four electrons, leaving it with a charge of +4.
Oxygen (O), being a nonmetal, typically forms a -2 oxidation state in compounds. In SnO2, each oxygen atom carries a charge of -2, and with two oxygen atoms, the total negative charge is -4. This charge balances the +4 charge from tin, resulting in an overall neutral compound.
Tin(IV) oxide is a white, odorless solid that is insoluble in water. It is used in various applications, including as a pigment in ceramics, as a catalyst in chemical reactions, and in the production of glass. The compound is also a key component in the production of certain types of electronic components, including semiconductors. Additionally, SnO2 is used in the fabrication of transparent conducting films, especially for touch screens and solar cells.
Thus, the compound SnO2 is commonly known as tin(IV) oxide, reflecting the oxidation state of tin in the compound.
