which of following liquid has least density :
¡) freshwater
¡¡) saltwater
¡¡¡)petrol
iv) Mercury
(arrange according to there density also.)
Answers
Answer:
CORRECT ANSWER = C
PETROL
Gasoline or petrol is a transparent, petroleumderived liquid that is used primarily as a fuel in internal combustion engines. It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. The specific gravity (or relative density) of gasoline ranges from 0.71–0.77 kg/l (719.7 kg/m3 ; 0.026 lb/in3; 6.073 lb/US gal; 7.29 lb/imp gal), higher densities having a greater volume of aromatics. Gasoline floats on water; water cannot generally be used to extinguish a gasoline fire, unless used in a fine mist.
ᴀɴs= ᴄᴏʀʀᴇᴄᴛ ᴏᴘᴛɪᴏɴ: ᴄ
ɢᴀsᴏʟɪɴᴇ ᴏʀ ᴘᴇᴛʀᴏʟ ɪs ᴀ ᴛʀᴀɴsᴘᴀʀᴇɴᴛ, ᴘᴇᴛʀᴏʟᴇᴜᴍᴅᴇʀɪᴠᴇᴅ ʟɪǫᴜɪᴅ ᴛʜᴀᴛ ɪs ᴜsᴇᴅ ᴘʀɪᴍᴀʀɪʟʏ ᴀs ᴀ ғᴜᴇʟ ɪɴ ɪɴᴛᴇʀɴᴀʟ ᴄᴏᴍʙᴜsᴛɪᴏɴ ᴇɴɢɪɴᴇs. ɪᴛ ᴄᴏɴsɪsᴛs ᴍᴏsᴛʟʏ ᴏғ ᴏʀɢᴀɴɪᴄ ᴄᴏᴍᴘᴏᴜɴᴅs ᴏʙᴛᴀɪɴᴇᴅ ʙʏ ᴛʜᴇ ғʀᴀᴄᴛɪᴏɴᴀʟ ᴅɪsᴛɪʟʟᴀᴛɪᴏɴ ᴏғ ᴘᴇᴛʀᴏʟᴇᴜᴍ, ᴇɴʜᴀɴᴄᴇᴅ ᴡɪᴛʜ ᴀ ᴠᴀʀɪᴇᴛʏ ᴏғ ᴀᴅᴅɪᴛɪᴠᴇs. ᴛʜᴇ sᴘᴇᴄɪғɪᴄ ɢʀᴀᴠɪᴛʏ (ᴏʀ ʀᴇʟᴀᴛɪᴠᴇ ᴅᴇɴsɪᴛʏ) ᴏғ ɢᴀsᴏʟɪɴᴇ ʀᴀɴɢᴇs ғʀᴏᴍ 0.71–0.77 ᴋɢ/ʟ (719.7 ᴋɢ/ᴍ3 ; 0.026 ʟʙ/ɪɴ3; 6.073 ʟʙ/ᴜs ɢᴀʟ; 7.29 ʟʙ/ɪᴍᴘ ɢᴀʟ), ʜɪɢʜᴇʀ ᴅᴇɴsɪᴛɪᴇs ʜᴀᴠɪɴɢ ᴀ ɢʀᴇᴀᴛᴇʀ ᴠᴏʟᴜᴍᴇ ᴏғ ᴀʀᴏᴍᴀᴛɪᴄs. ɢᴀsᴏʟɪɴᴇ ғʟᴏᴀᴛs ᴏɴ ᴡᴀᴛᴇʀ; ᴡᴀᴛᴇʀ ᴄᴀɴɴᴏᴛ ɢᴇɴᴇʀᴀʟʟʏ ʙᴇ ᴜsᴇᴅ ᴛᴏ ᴇxᴛɪɴɢᴜɪsʜ ᴀ ɢᴀsᴏʟɪɴᴇ ғɪʀᴇ, ᴜɴʟᴇss ᴜsᴇᴅ ɪɴ ᴀ ғɪɴᴇ ᴍɪsᴛ.