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Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its | |
A. | poor oxidation stability and high gum forming tendency. [Wrong Answer] |
B. | greater tendency of decomposition at elevated temperature. [Wrong Answer] |
C. | hydrolysis tendency in presence of water. [Wrong Answer] |
D. | all (a), (b) and (c). [Correct Answer] |