Chemical Engineering - Chemical Process - Discussion

46. 

Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to

[A]. reduce its viscosity.
[B]. increase its viscosity.
[C]. reduce the variation in its viscosity with temperature.
[D]. increase the variation in its viscosity with temperature.

Answer: Option C

Explanation:

No answer description available for this question.

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