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Which is most VISCOUS?

Options

  1. AEthanol
  2. BEthylene glycol
  3. CGlycerol
  4. DMethanol

Correct answer

C. Glycerol

Step-by-step solution

We know that, higher is the extent of H-bonding higher will be the viscosity. Among the given option glycerol has the highest viscosity as in this case 3-0H groups are involved in hydrogen bonding which is greater than other ethylene glycol has two and both ethanol and methanol has one - OH group.

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