SPM Biology Practice Questions - Sijil Pelajaran Malaysia (SPM) Biology Biologi - Subject Code 4551 Exam

Which test reagent and result correctly indicate the presence of reducing sugar in a food sample?

Iodine solution turns from brown to blue-black Biuret reagent turns from blue to violet Benedict's solution turns from blue to brick-red on heating Ethanol emulsion test produces a white emulsion

Correct Answer:

Benedict's solution turns from blue to brick-red on heating

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