Tall oil obtained as a by-product from the black liquor recovery is________________?
Correct answer: C. All A , B. & C.
- A. A black, sticky & viscous liquid
- B. Used in the manufacture of greases, emulsions & soaps
- C. All A , B. & C.
- D. Composed mainly of rosin & fatty acids
Explanation
Tall oil is a dark, sticky liquid recovered from black-liquor soap and contains mainly rosin and fatty acids. These components make it useful in soaps, greases and emulsions, so all three statements are correct.
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