Question

why litmus called a natural indicator? explain its role as an indicate​

Answer 1

Explanation:

litmus is called a natural indicator because it is made from an organic matter called "lichen" which is a symbiotic relationship between algae and fungi.

When it's solution changes its colour to red then the substance it's acidic and if it changes its colour to blue then the substance is basic.

Answer 2

Answer:

꧁ʟɪᴛᴍᴜs ᴀs ɪɴᴅɪᴄᴀᴛᴏʀ꧂

ᴀɴs:- ʟɪᴛᴍᴜs ɪs ᴀ ᴄᴏᴍᴏɴʟʏ ᴜsᴇᴅ ɪɴᴅɪᴄᴀᴛᴏʀ. ɪᴛ ɪs ᴀ ᴘᴜʀᴘʟᴇ ᴅʏᴇ , ᴡʜɪᴄʜ ᴡᴇ ᴍᴀᴋᴇ ғʀᴏᴍ ʟɪᴄʜᴇɴs . ᴡʜᴇɴ ᴀᴅᴅᴇᴅ ᴛᴏ ᴀɴ ᴀᴄɪᴅɪᴄ sᴏʟᴜᴛɪᴏɴ ɪᴛ ᴛᴜʀɴs ʀᴇᴅ , ᴀɴᴅ ᴡʜᴇɴ ᴀᴅᴅᴇᴅ ᴛᴏ ᴀ ʙᴀsɪᴄ sᴏʟᴜᴛɪᴏɴ ɪᴛ ᴛᴜʀɴs ʙʟᴜᴇ . ᴘᴀᴘᴇʀ ᴛʜᴀᴛ ɪs sᴏᴀᴋᴇᴅ ɪɴ ʟɪᴛᴍᴜs sᴏʟᴜᴛɪᴏɴ ᴀɴᴅ ᴅʀɪᴇᴅ ᴋs ᴄᴀʟʟᴇᴅ ʟɪᴛᴍᴊs ᴘᴀᴘᴇʀ . ɪᴛ ɪs ᴀᴠᴀɪʟᴀʙʟᴇ ɪɴ ᴛᴡᴏ ᴄᴏʟᴏᴜʀs - ʙʟᴜᴇ ᴀɴᴅ ʀᴇᴅ .