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Coal is a complex mixture of very _____ molecular-weight compounds.

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Coal is a complex mixture of very _____ molecular-weight compounds.

(a) Low

(b) High

(c) Moderate

(d) None of the mentioned

I got this question by my school teacher while I was bunking the class.

This interesting question is from Industrial Processes-III in section Hydrogenation of Unit Processes

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Right choice is (b) High

To explain I would say: Coal is a complex mixture of very high-molecular-weight compounds which apparently exist as an elaborate network of carbon rings.

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