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A-LevelBiologyBiological molecules9700/12 · Oct/Nov 2018 · Q71 Mark

A sample of a solution was tested for reducing sugar and the result was negative. Another sample of the same solution was then tested for non-reducing sugar and the result was positive. Which step in the test for non-reducing sugar breaks the glycosidic bonds?

Aaddition of Benedict's reagent
Baddition of sodium hydroxide
Cboiling with hydrochloric acid
Dheating to 80 °C

✓ Correct answer

C: boiling with hydrochloric acid

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About this question

Topic
Biological molecules, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2018 Paper 1 Variant 2, question 7.

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