Question

state any three precaution while using laboratory thermometer

Answer 1

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➠ Pʀᴇᴄᴀᴜᴛɪᴏɴꜱ ᴛᴏ ʙᴇ ᴛᴀᴋᴇɴ ᴡʜɪʟᴇ ᴜꜱɪɴɢ ᴀ ʟᴀʙᴏʀᴀᴛᴏʀʏ ᴛʜᴇʀᴍᴏᴍᴇᴛᴇʀ:

• ᴛʜᴇ ᴛʜᴇʀᴍᴏᴍᴇᴛᴇʀ ꜱʜᴏᴜʟᴅ ʙᴇ ᴋᴇᴘᴛ ᴜᴘʀɪɢʜᴛ ɴᴏᴛ ᴛɪʟᴛᴇᴅ.
• ʙᴜʟʙ ꜱʜᴏᴜʟᴅ ʙᴇ ꜱᴜʀʀᴏᴜɴᴅᴇᴅ ғʀᴏᴍ ᴀʟʟ ᴛʜᴇ ꜱɪᴅᴇꜱ ʙʏ ᴛʜᴇ ꜱᴜʙꜱᴛᴀɴᴄᴇ ʙʏ ᴡʜɪᴄʜ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴛᴏ ʙᴇ ᴍᴇᴀꜱᴜʀᴇᴅ.
• ᴛʜᴇ ʙᴜʟʙ ꜱʜᴏᴜʟᴅ ɴᴏᴛ ᴛᴏᴜᴄʜ ᴛʜᴇ ꜱᴜʀғᴀᴄᴇ ᴏғ ᴛʜᴇ ᴄᴏɴᴛᴀɪɴᴇʀ.

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Answer 2

Answer:

precaution while using laboratory thermometer-

✨Never hold the thermometer by the bulb while reading it.

✨Wash the thermometer with water or antiseptic solution before and after use.

✨While performing the experiment, don’t touch the bulb of the thermometer with the wall of the beaker.

✨Read the thermometer keeping the level of mercury along the line of sight.

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