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Calcium complex grease can be made from ___________

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Calcium complex grease can be made from ___________

(a) lime, fatty acid, acetic acid

(b) calcium, lime, acetic acid

(c) calcium, lime, acetic acid

(d) lime, calcium, acetic acid

The question was asked in an internship interview.

Question is taken from Classification of Lubricants topic in division Lubricants of Applied Chemistry

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Correct option is (a) lime, fatty acid, acetic acid

Easiest explanation: Calcium complex grease is formed out of the lime, fatty acid and acetic acid. The grease can be formed by using the sodium, aluminium and lithium. That is why these lubricants have high melting points.

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