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WAEC Chemistry 2025 Theory — Question 20

Question 20 of 70 from the West African Examinations Council (WAEC) Chemistry 2025 Theory paper, with the correct answer and a full explanation.

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2(a)(i). Explain briefly the term 'functional group'.

Model answer

A functional group is an atom, group of atoms, or bond which determines the chemical properties of a compound.

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