Question

Rust is an insoluble .... *

hydrated sulphide

hydrated oxide

hydrated carbonate

hydrated dioxide


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Answer 1

Rust (Fe2O3·H2O) is formed halfway between the drop center and the periphery which is alkaline. The ferrous ions on the surface of iron are soluble whereas those in solution are oxidized by oxygen to insoluble hydrated oxides of ferric called rust.

Answer 2

Answer:

rust is an soluble hydrated oxide