Question

EXtraction of metals In the middle

Answer 1

Metals in the middle of reactivity series are moderately reactive .They are present in the form ofcarbonate and sulphide ores . The
sulphide ores are heated strongly in the
presence of excess air known as roasting.
The carbonate ores are heated in the
absence or presence of limited air
and converted into oxides .This process
is known as calcination.

Answer 2

ⓗⓔⓡⓔ ⓘⓢ ⓨⓞⓤⓡ ⓐⓝⓢⓦⓔⓡ

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.

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