SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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water
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molasses
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vinegar
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grape juice
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Detailed explanation-1: -Glycol has maximum viscosity because it has two −OH groups and there is greater intermolecular H−bonding in comparison to water and methanol.
Detailed explanation-2: -Ever heard the phrase “slower than molasses?” Viscosity is what it’s referring to, since molasses has a fairly high viscosity and so doesn’t flow very quickly.
Detailed explanation-3: -Solids have high viscosity because they cannot flow freely. Viscosity of liquids ranges from low to high whereas gases have a low viscosity. Hence, wood being a solid has a very high viscosity.
Detailed explanation-4: -Due to the presence of OH group in sugar molecule intense hydrogen bonding is found in them. Therefore, stronger intermolecular forces are present in molasses than water. These strong intermolecular forces in the molasses cause resistance in the movement. Hence, slower movement than water is found in molasses.
Detailed explanation-5: -Rice bran oil was the most viscous (0.0398 Pa·s at 38°C) while walnut oil was the least viscous (0.0296 Pa·s at 38°C) among the oils studied.