Answer: (3) Only ferric oxide
Iron blends with oxygen from the air in the presence of moisture to create a brown chemical substance known as rust.
The chemical formula of rust is a hydrated ferric oxide (Fe2O3.nH2O).
Answer: (3) Only ferric oxide
Iron blends with oxygen from the air in the presence of moisture to create a brown chemical substance known as rust.
The chemical formula of rust is a hydrated ferric oxide (Fe2O3.nH2O).
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