Describe an activity with labelled diagram to obtain dye from blue ink . Name the component which gets evaporated
Answers
Answer:
ᴍᴀʀᴋ ᴀs ʙʀᴀɪɴʟɪsᴛ
ᴇᴠᴀᴘᴏʀᴀᴛɪᴏɴ ɪs ᴀɴ ᴇssᴇɴᴛɪᴀʟ ᴘᴀʀᴛ ᴏғ ᴛʜᴇ ᴡᴀᴛᴇʀ ᴄʏᴄʟᴇ. ᴛʜᴇ sᴜɴ (sᴏʟᴀʀ ᴇɴᴇʀɢʏ) ᴅʀɪᴠᴇs ᴇᴠᴀᴘᴏʀᴀᴛɪᴏɴ ᴏғ ᴡᴀᴛᴇʀ ғʀᴏᴍ ᴏᴄᴇᴀɴs, ʟᴀᴋᴇs, ᴍᴏɪsᴛᴜʀᴇ ɪɴ ᴛʜᴇ sᴏɪʟ, ᴀɴᴅ ᴏᴛʜᴇʀ sᴏᴜʀᴄᴇs ᴏғ ᴡᴀᴛᴇʀ. ɪɴ ʜʏᴅʀᴏʟᴏɢʏ, ᴇᴠᴀᴘᴏʀᴀᴛɪᴏɴ ᴀɴᴅ ᴛʀᴀɴsᴘɪʀᴀᴛɪᴏɴ (ᴡʜɪᴄʜ ɪɴᴠᴏʟᴠᴇs ᴇᴠᴀᴘᴏʀᴀᴛɪᴏɴ ᴡɪᴛʜɪɴ ᴘʟᴀɴᴛ sᴛᴏᴍᴀᴛᴀ) ᴀʀᴇ ᴄᴏʟʟᴇᴄᴛɪᴠᴇʟʏ ᴛᴇʀᴍᴇᴅ ᴇᴠᴀᴘᴏᴛʀᴀɴsᴘɪʀᴀᴛɪᴏɴ.
Answer:
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Explanation:
Fill half a beaker with water. Put a watch-glass on the top of the beaker. Add a few drops of blue ink on the watch-glass (as shown in the figure). Now, heat the beaker till a solid mass is obtained.
You will observe that a solid residue of the dye is obtained in the watch-glass. Ink is a colloidal solution. It is a heterogeneous mixture of dye and water. Heating leads to the evaporation of water. This leaves behind the dye in the watch-glass.
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