Which among the following is most viscous liquid?
Ethyl alcohol
Ethylene glycol
Hexane
Dichloromethane
Answers
Answered by
9
Glycerol (1,2,3-trihydroxypropane) has three -OH groups per molecule while ethylene glycol (1,2-dihydroxyethane) has two -OH groups. The viscosity depends on the amount of hydrogen bonding between molecules, and the more -OH bonds there are, the more hydrogen bonding can occur. So glycerol is the most viscous.
Answered by
0
Ethylene glycol has two O-H groups, it is more viscous than ethyl alcohol (ethyl alcohol contains one O-H group). As a result, the hydrogen bonds between ethylene glycol molecules are strengthened.
Ethylene glycol :
Ethylene glycol (CH2OH2) is an alcohol-based chemical compound also known as 1,2-ethanediol that is commonly employed as an antifreeze agent in HVAC equipment and automobile systems.
It's a sweet-tasting, odourless, colourless liquid with a thick consistency.
Final answer:
Hydrogen bonding can be observed in water. Because glycol has more hydrogen bonding than ethanol and water due to the presence of two OH groups, it has the highest viscosity among the three liquids.
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