Of these four liquids, which is the most viscous?
Answer: Out of all the options presented above the one that is the most viscous liquid is answer choice D) Hg. Mercury has a Dyn. viscosity of 1.55 mPa·s. This liquid is often used for thermometers, barometers, manometers and many other devices.
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A strong force of attraction holding atoms together in a molecule or crystal, resulting from the sharing or transfer of electrons, The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.