Question 19: Choose the best answer among A, B, C or D that best completes each sentence: Benzene, ______ by Faraday, was the starting point in the manufacture of many dyes, perfumes and explosives.
The form of a relative clause of an object
=> which was discovered
The answer is NO
Benzene, which was discovered by Faraday, was the starting point in the production of many dyes, perfumes and explosives.
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