WAEC Chemistry 2020 Objective — Question 1

Question 1 of 50 from the West African Examinations Council (WAEC) Chemistry 2020 Objective paper, with the correct answer and a full explanation.

Which of the following substances is an example of a fine chemical?

A. Sodium hydroxide
B. Hydrochloric acid
C. EthyleneCorrect
D. Ammonia

Explanation

Chemicals that are manufactured in small quantities and to a high degree of purity are known as fine chemicals, while those manufactured in large quantities are known as heavy chemicals. Ethylene is an example of a fine chemical.

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