Question

Why does the colour of copper sulphate solution changes when an iron nail is dipped in it? write two observation

Answer 1

Answer:

The color change is due to iron displacing copper from copper sulphate solution.

Explanation:

Observation:

1. Blue color of the solution changes to green
2. Irom becomes reddish brown in color

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Answer 2

ᴡʜᴇɴ ᴀɴ ɪʀᴏɴ ɴᴀɪʟ ᴅɪᴘᴘᴇᴅ ɪɴ ᴛʜᴇ ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ sᴏʟᴜᴛɪᴏɴ ᴛʜᴀɴ ɪʀᴏɴ ᴅɪsᴘʟᴀᴄᴇs ᴄᴏᴘᴘᴇʀ ғʀᴏᴍ ᴛʜᴇ ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ ʙᴇᴄᴀᴜsᴇ ɪʀᴏɴ ɪs ᴍᴏʀᴇ ʀᴇᴀᴄᴛɪᴠᴇ ᴛʜᴀɴ ᴄᴏᴘᴘᴇʀ. ᴛʜᴇʀᴇғᴏʀᴇ ᴛʜᴇ ᴄᴏʟᴏᴜʀ ᴏғ ᴛʜᴇ ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ sᴏʟᴜᴛɪᴏɴ ᴄʜᴀɴɢᴇs.