Question

Write the Redox reaction in the corrison of iron

Answer 1

Answer:

ɪɴ ᴛʜᴇ ᴄᴏʀʀᴏsɪᴏɴ ᴘʀᴏᴄᴇss, ɪʀᴏɴ ᴍᴇᴛᴀʟ ᴀᴄᴛs ᴀs ᴛʜᴇ ᴀɴᴏᴅᴇ ɪɴ ᴀ ɢᴀʟᴠᴀɴɪᴄ ᴄᴇʟʟ ᴀɴᴅ ɪs ᴏxɪᴅɪᴢᴇᴅ ᴛᴏ ғᴇ2+; ᴏxʏɢᴇɴ ɪs ʀᴇᴅᴜᴄᴇᴅ ᴛᴏ ᴡᴀᴛᴇʀ ᴀᴛ ᴛʜᴇ ᴄᴀᴛʜᴏᴅᴇ. ᴛʜᴇ ʀᴇʟᴇᴠᴀɴᴛ ʀᴇᴀᴄᴛɪᴏɴs ᴀʀᴇ ᴀs ғᴏʟʟᴏᴡs: ᴀᴛ ᴄᴀᴛʜᴏᴅᴇ: ᴏ2(ɢ)+4ʜ+(ᴀϙ)+4ᴇ−→2ʜ2ᴏ(ʟ)ᴇ°=1.23ᴠ. ᴀᴛ ᴀɴᴏᴅᴇ: ғᴇ(s)→ғᴇ2+(ᴀϙ)+2ᴇ− ᴇ°=−0.45ᴠ.

Answer 2

Answer:

Iron + moisture = rust (ferric oxide)

Fe + H20 + O2 -----> Fe203.xH2O

Oxidation is loss of electrons while reduction is gain. Fe gets oxidised to Fe2O3 and O2 gets reduced to Fe2O3.

Fe atoms lose electrons and O atoms gains the electrons lost by Fe to from Fe^3+ and O^2- ions. These ions attracted towards each other due to opposite charges to form Ferric oxide.

Here, Fe is the reducing agent while O2 is the oxidising agent.