Chemistry, asked by ghfgk5310, 1 year ago

I M NOT ABLE TO UNDERSTAND THE EXTRACTION AND PURIFICATION PROCESSES OE METAL .

Answers

Answered by prekshadeshmukh286
0
Extraction of metal at the top of the reactivity series is done with the process called electrolysis. In this process a large amount of electricity is supplied to the molten metal(which is in the oxide or chloride form). And that is how these metals are extracted.

While refining is the process where the extracted metal is purified by the process called electrolytic refining. In the process the pure metal is kept as Cathode and the impure metal is Anode. A tank contains the salt solution of the same metal, called electrolyte. and the entire setup is connected by a circuit. as electricity passes through the circuit, the pure metal from anode gets attached to cathode and impurities either dissolve in the solution or settle down at the bottom of the beaker.

Both the processes are entirey different. Ghe only similarity is that both processes involve use of electricity.
Hope this answer helps u.
Answered by Ajeesha15
2
✨✔️HERE IS YOUR ANSWER....

✔️ EXTRACTING METALS LOW IN THE REACTIVITY SERIES :-

✨Metals low in the reactivity series are very unreactive. The oxides of these metals can be reduced to metals by my alone.
For example :- Cinnabar is an Ore of mercury. When it is heated in air it first converted into mercuric oxide. Mercuric oxide is then reduced to mercury on further heating.


✔️ EXTRACTING METALS FROM MIDDLE OF THE REACTIVITY SERIES. :-

✨ᴛʜᴇ ᴍᴇᴛᴀʟs ɪɴ ᴛʜᴇ ᴍɪᴅᴅʟᴇ ᴏғ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴠɪᴛʏ sᴇʀɪᴇs ᴀʀᴇ MODERATELY REACTIVE. THESE ARE ᴜsᴜᴀʟʟʏ ᴘʀᴇsᴇɴᴛ ᴀs sᴜʟᴘʜɪᴅᴇs ᴏʀ ᴄᴀʀʙᴏɴᴀᴛᴇs ɪɴ ɴᴀᴛᴜʀᴇ ᴛʜᴇ ᴍᴇᴛᴀʟ sᴜʟᴘʜɪᴅᴇs ᴀɴᴅ ᴄᴀʀʙᴏɴᴀᴛᴇs ᴍᴜsᴛ ʙᴇ ᴄᴏɴᴠᴇʀᴛᴇᴅ ɪɴᴛᴏ ᴍᴇᴛᴀʟ ᴏxɪᴅᴇs.

ᴛʜᴇ sᴜʟᴘʜɪᴅᴇ ᴏʀᴇs ᴀʀᴇ ᴄᴏɴᴠᴇʀᴛᴇᴅ ɪɴᴛᴏ ᴏxɪᴅᴇs ʙʏ ʜᴇᴀᴛɪɴɢ sᴛʀᴏɴɢʟʏ ɪɴ ᴛʜᴇ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴇxᴄᴇss ᴀɪʀ. ᴛʜɪs ᴘʀᴏᴄᴇss ɪs ᴋɴᴏᴡɴ ᴀs ʀᴏᴀsᴛɪɴɢ.

ᴛʜᴇ ᴄᴀʀʙᴏɴᴀᴛᴇs ᴏʀᴇs ᴀʀᴇ ᴄʜᴀɴɢᴇᴅ ɪɴᴛᴏ ᴏxɪᴅᴇs ʙʏ ʜᴇᴀᴛɪɴɢ sᴛʀᴏɴɢʟʏ ɪɴ ʟɪᴍɪᴛᴇᴅ ᴀɪʀ. ᴛʜɪs ᴘʀᴏᴄᴇss ɪs ᴋɴᴏᴡɴ ᴀs ᴄᴀʟᴄɪɴᴀᴛɪᴏɴ.

✔ EXTRACTING ️ METALS IN THE TOP OF THE REACTIVITY SERIES :-

✨The metals high up in the reactivity series are very reactive. They cannot be obtained by heating. These metals have more affinity for oxygen than carbon. The metals are obtained by electrolytic reduction.

✨REFINING OF METALS....

IN THIS PROCESS IMPURE METAL IS MADE THE ANODE AND A THIN STRIP OF PURE METAL IS MADE OF CATHODE. ON PASSING THE CURRENT THROUGH THE ELECTROLYTE, THE PURE METAL FROM THE ANODE DISSOLVES INTO THE ELECTROLYTE. AN EQUIVALENT AMOUNT OF PURE METAL FROM THE ELECTROLYTE IS DEPOSITED ON CATHODE. THE SOLUBLE IMPURITIES GO. INTO THE SOLUTION, WHEREAS THE INSOLUBLE IMPURITIES SETTLE DOWN AT THE BOTTOM OF THE ANODE AND ARE KNOWN AS ANODE MUD.

Electrolyte:- A solution of metal salt is used as an Electrolyte.

✔️✔️✨HOPE IT HELPS YOU

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