what are indicators?Give examples.Why do we use the indicators
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Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.
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ɪɴᴅɪᴄᴀᴛᴏʀs ᴀʀᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴄᴏᴍᴘᴏᴜɴᴅs ᴛʜᴀᴛ ᴛᴇʟʟ ᴜs ᴡʜᴇᴛʜᴇʀ ᴀ sᴜʙsᴛᴀɴᴄᴇ ɪs ᴀᴄɪᴅɪᴄ ᴏʀ ʙᴀsɪᴄ ʙʏ ᴄʜᴀɴɢɪɴɢ ɪᴛs ᴄᴏʟᴏᴜʀ. ᴡʜᴇɴ ᴀᴅᴅᴇᴅ ᴛᴏ ᴀɴ ᴀᴄɪᴅɪᴄ sᴏʟᴜᴛɪᴏɴ ᴏʀ ᴀ ʙᴀsɪᴄ sᴏʟᴜᴛɪᴏɴ, ɪɴᴅɪᴄᴀᴛᴏʀs ᴄʜᴀɴɢᴇ ᴛʜᴇɪʀ ᴄᴏʟᴏᴜʀ ᴀɴᴅ ᴛʜɪs ᴄʜᴀɴɢᴇ ɪɴ ᴄᴏʟᴏᴜʀ ɪs ᴅɪғғᴇʀᴇɴᴛ ғᴏʀ ᴛʜᴇ ᴀᴄɪᴅs ᴀɴᴅ ʙᴀsᴇs.
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