Chemistry, asked by akanshabarai9a2, 2 months ago

A student has been collecting silver coins and copper coins. After some days, when she took out the coins to count, she observed a black coating on silver coins and green coating on copper coins. Which chemical phenomenon is responsible for such coatings? Write the chemical reactions involved.

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Answered by yourspratiksha

Tʜᴇ ᴘʜᴇɴᴏᴍᴇɴᴏɴ ɪs ᴋɴᴏᴡɴ ᴀs ᴄᴏʀʀᴏsɪᴏɴ. Aɪʀ ᴄᴏɴᴛᴀɪɴs ᴛʀᴀᴄᴇs ᴏғ ʜʏᴅʀᴏɢᴇɴ sᴜʟᴘʜɪᴅᴇ ɢᴀs ᴡʜɪᴄʜ ʀᴇᴀᴄᴛs ᴡɪᴛʜ sɪʟᴠᴇʀ ᴍᴇᴛᴀʟ ᴘʀᴇsᴇɴᴛ ɪɴ ᴛʜᴇ ᴄᴏɪɴ ᴛᴏ ғᴏʀᴍ sɪʟᴠᴇʀ sᴜʟᴘʜɪᴅᴇ..!!

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A student has been collecting silver coins and copper coins. After some days, when she took out the coins to count, she observed a black coating on silver coins and green coating on copper coins. Which chemical phenomenon is responsible for such coatings? Write the chemical reactions involved.​

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A student has been collecting silver coins and copper coins. After some days, when she took out the coins to count, she observed a black coating on silver coins and green coating on copper coins. Which chemical phenomenon is responsible for such coatings? Write the chemical reactions involved.