In low temperature carbonisation (as compared to high temperature carbonisation) of coal__________________?
Correct answer: B. Aliphatic tar is produced
- A. Ammonia yield is more
- B. Aliphatic tar is produced
- C. Free carbon in tar is more
- D. All A., B. and C.
Explanation
Low-temperature carbonisation produces a larger quantity of tar containing more aliphatic compounds, whereas high-temperature carbonisation gives more aromatic products and gas. Thus the characteristic statement is that aliphatic tar is produced.
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