Question

Blood contains both oxygen and iron then why it can't makes a rust.

Answer 1

blood has both O2 and Fe but still it can't produce rust because they're in forms of compound which r present in our body

Answer 2

Blood doesn’t rust solid because the iron in our blood isn’t free-floating. It’s part of a large molecule called hemoglobin. Rust is a result of oxidation. The iron-containing pigment in blood is “heme”, pronounced “heem”. The globin is a protein. There’s interaction between heme and O2 when O2 causes a limited oxidation to heme allowing heme to bond with O2 in pulmonary capillaries. This is why it’s said that heme has an affinity for O2. And you can observe this interaction, the oxidative process, with dried blood.

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