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Pour point indicates the _______ of lubricating oil.

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Pour point indicates the _______ of lubricating oil.

(a) Dissolved wax concentration

(b) Total wax concentration

(c) Initial wax concentration

(d) Weight of the wax

I had been asked this question in my homework.

The question is from Cloud Point and Pour Point topic in portion Lubricants of Applied Chemistry

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Correct choice is (a) Dissolved wax concentration

To explain I would say: Pour point indicates the dissolved wax concentration of lubricating oil. In pour point experiment two thermometers are present to measure the temperature off cooling mixture and lubricating oil.

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