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Castor oil is used for _______

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Castor oil is used for _______

(a) Plastic industry

(b) For guns

(c) For sewing machines

(d) Light machinery

I got this question during a job interview.

This intriguing question originated from Classification of Lubricants topic in chapter Lubricants of Applied Chemistry

1 Answer

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Correct option is (a) Plastic industry

The best I can explain: The castor oil is mainly used for machinery at high speed and low pressure. It is used at plastic industry and medical purposes. For guns and sewing machine the neats foot oil is used. For light machinery, whale oil is used.

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