The order of increasing ionic property is;
WO3 < ZrS2 < MnS2< ZnS < MnS
Ionic compounds are compounds that contain an ion pair. Typically, ionic compounds are formed between metals and nonmetals.
The degree of ionic character depends on the type of metal involved and the magnitude of charge it carries.
Typically, first row transition metals form ionic compounds. The degree of ionic character depends on the row in which the metal is found and the magnitude of charge it carries.
Hence, the order of ionic character of the compounds from most ionic to least Ionic is; WO3 < ZrS2 < MnS2< ZnS < MnS.
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