Explanation:

Sodium zincate is a compound that contains sodium, zinc, and oxygen. The chemical formula for sodium zincate is Na2ZnO2. It is an ionic compound that is formed when sodium hydroxide (NaOH) reacts with zinc oxide (ZnO). The reaction between NaOH and ZnO is a double displacement reaction that results in the formation of sodium zincate and water.

Naming convention:

The naming convention for ionic compounds involves naming the cation followed by the anion. The cation is always named first and takes its name from the element. The anion takes its name from the element and adds a suffix based on the number of oxygen atoms present in the compound. If the anion has fewer oxygen atoms than the most common form of the anion, the prefix "hypo-" is used. If the anion has more oxygen atoms than the most common form of the anion, the prefix "per-" is used. If the anion has the same number of oxygen atoms as the most common form of the anion, the suffix "-ate" is used.

Application to Sodium zincate:

In the case of sodium zincate, the anion is composed of zinc and oxygen. The most common form of this anion is zinc oxide (ZnO), which contains one oxygen atom. Sodium zincate, on the other hand, contains two oxygen atoms. Therefore, the suffix "-ate" is used to indicate that there are more oxygen atoms than in the most common form of the anion.

Conclusion:

In summary, the naming convention for ionic compounds involves naming the cation followed by the anion. The anion takes its name from the element and adds a suffix based on the number of oxygen atoms present in the compound. In the case of sodium zincate, the suffix "-ate" is used to indicate that there are more oxygen atoms than in the most common form of the anion.

According to rules,the oxygen atom having 2 atom takes suffix -ite but here in the case of sodium zincate it takes suffix -ate.......why?