Question

— paper is a natural indicator​

Answer 1

Ans is Litmus paper

Explanation:

Its Natural indicator . When we add acidic solution it turns red and when added to basic solution It turns blur

Answer 2

●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬●

$\huge\sf\underline{\pink{L}\blue{I}\red{T}\purple{M}\orange{U}\green{S}}$

●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬●

• ʟɪᴛᴍᴜs ᴘᴀᴘᴇʀ-:ʟɪᴛᴍᴜs ɪɴᴅɪᴄᴀᴛᴏʀ sᴏʟᴜᴛɪᴏɴ ᴛᴜʀɴs ʀᴇᴅ ɪɴ ᴀᴄɪᴅɪᴄ sᴏʟᴜᴛɪᴏɴs ᴀɴᴅ ʙʟᴜᴇ ɪɴ ᴀʟᴋᴀʟɪɴᴇ sᴏʟᴜᴛɪᴏɴs. ɪᴛ ᴛᴜʀɴs ᴘᴜʀᴘʟᴇ ɪɴ ɴᴇᴜᴛʀᴀʟ sᴏʟᴜᴛɪᴏɴs.