Question

How will you test that the tea dust is not adulterated with iron powder?​

Answer 1

Explanation:

Iron powder has magnetic properties and hence it could be separated using magnet. In order to check tea dust for adulteration with iron powder, spread it on a plate and then move a magnet over it. If nothing sticks to the magnet then tea dust is adulteration free otherwise it is not.

I hope this helps you

Answer 2

$\red{★Question➡}$ How will you test that the tea dust is not adulterated with iron powder?

$\blue{★AnsweR➡}$ ɪʀᴏɴ ᴘᴏᴡᴅᴇʀ ʜᴀs ᴍᴀɢɴᴇᴛɪᴄ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴀɴᴅ ʜᴇɴᴄᴇ ɪᴛ ᴄᴏᴜʟᴅ ʙᴇ sᴇᴘᴀʀᴀᴛᴇᴅ ᴜsɪɴɢ ᴍᴀɢɴᴇᴛ. ɪɴ ᴏʀᴅᴇʀ ᴛᴏ ᴄʜᴇᴄᴋ ᴛᴇᴀ ᴅᴜsᴛ ғᴏʀ ᴀᴅᴜʟᴛᴇʀᴀᴛɪᴏɴ ᴡɪᴛʜ ɪʀᴏɴ ᴘᴏᴡᴅᴇʀ, sᴘʀᴇᴀᴅ ɪᴛ ᴏɴ ᴀ ᴘʟᴀᴛᴇ ᴀɴᴅ ᴛʜᴇɴ ᴍᴏᴠᴇ ᴀ ᴍᴀɢɴᴇᴛ ᴏᴠᴇʀ ɪᴛ. ɪғ ɴᴏᴛʜɪɴɢ sᴛɪᴄᴋs ᴛᴏ ᴛʜᴇ ᴍᴀɢɴᴇᴛ ᴛʜᴇɴ ᴛᴇᴀ ᴅᴜsᴛ ɪs ᴀᴅᴜʟᴛᴇʀᴀᴛɪᴏɴ ғʀᴇᴇ ᴏᴛʜᴇʀᴡɪsᴇ ɪᴛ ɪs ɴᴏᴛ.