WAEC Chemistry 2019 Objective — Question 41

Question 41 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.

Which of the following substances can be classified as heavy chemical?

A. CaOCl2
B. H2SO4Correct
C. AgNO3
D. CaO

Explanation

Heavy chemicals are those manufactured in large quantities (e.g. H2SO4), while fine chemicals are produced in small quantities but to a high degree of purity (e.g. dyes).

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