WAEC Chemistry 2015 Theory — Question 31

Question 31 of 49 from the West African Examinations Council (WAEC) Chemistry 2015 Theory paper, with the correct answer and a full explanation.

3(d)(iii). Give a reason why starch does not reduce Fehling's solution.

Model answer

Starch cannot reduce Fehling's solution because it has no free/oxidizable aldehyde (–CHO) group, unlike reducing sugars such as glucose.

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