Question

coal tar is mixture of various substance true and false​

Answer 1

true ... is the right answer

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Answer 2

Answer:

yes it is true . Coal tar is a complex mixture of a larger number of aromatic hydrocarbons (benzene, naphthalene, anthracene, phenanthrene and their homologues), aromatic acids and nitrogen-containing compounds and it transpired that it was better to study the carcinogenic effect of separate fractions obtained by distillation .

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