Question

How does rusting differ from a combustion reaction?

A. Rusting involves combining with oxygen, and combustion does not.
B. Combustion involves combining with oxygen, and rusting does not.
C. Rusting is a redox reaction, and combustion is not.
D. Although both involve combining with oxygen, combustion is more rapid.

Answer 1

Rust is iron oxide while the white powder on aluminium is aluminium oxide. Cooking with gas, a bush fire and burning petrol in a car are examples of combustion. Combustion is like corrosion in that it involves combining a substance with oxygen, but this time very quickly to produce heat and light as a flame.

Answer 2

ᴀɴsᴡᴇʀ : Rusting is a redox reaction, and combustion is not.

➲ D. Although both involve combining with oxygen, combustion is more rapid.

ᴛʜᴇʀᴇғᴏʀᴇ ᴏᴘᴛɪᴏɴ ( ᴅ ) ɪs ᴄᴏʀʀᴇᴄᴛ