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What is the chemical formula of rust, which is formed on the surface of iron...

Chemistry
JAMB 2023

What is the chemical formula of rust, which is formed on the surface of iron in the presence of oxygen and moisture?

  • A. Fe\(_3\)O\(_4\)
  • B. FeO
  • C. Fe(OH)3
  • D. Fe\(_2\)O\(_3\)
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Correct Answer: Option D
Explanation

Rust is a reddish-brown compound that forms on the surface of iron in the presence of oxygen and moisture. Its chemical formula is Fe\(_2\)O\(_3\), indicating the presence of two iron atoms and three oxygen atoms in the compound.

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Explanation Video

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