give reason
1.Souring of milk is a chemical change
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It's a chemical change because, a new by product that is curd or lactic acid is formed and it's an irreversible change as curd can't become milk again
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❃ǫᴜᴇs:- sᴏᴜʀɪɴɢ ᴏғ ᴍɪʟᴋ ɪs ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴘʀᴏᴄᴇss. ɢɪᴠᴇ ʀᴇᴀsᴏɴs?
❃ᴀɴs:-sᴏᴜʀɪɴɢ ᴏғ ᴍɪʟᴋ ɪs ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ ʙᴇᴄᴀᴜsᴇ ᴅᴜʀɪɴɢ ᴛʜᴀᴛ ᴘʀᴏᴄᴇss ᴀᴄᴇᴛɪғʏ ᴛᴀᴋᴇs ᴘʟᴀᴄᴇ ᴀɴᴅ ᴘᴜɴɢᴇɴᴛ ᴍɪʟᴋ ɪs ᴘʀᴏᴅᴜᴄᴇᴅ. ᴛʜɪs sᴏᴜʀ ᴍɪʟᴋ ʜᴀs ᴜɴʟɪᴋᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴘʀᴏᴘᴇʀᴛɪᴇs ғʀᴏᴍ ғʀᴇsʜ ᴍɪʟᴋ.
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