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Chemistry · 2025 · 3 marks
CBSE 2025 · Region 2 · Set 1 · Q28
Define the following terms: (a) Glycosidic linkage (b) Invert sugar (c) Oligosaccharides
Define the following terms :
(a)
Glycosidic linkage
(b)
Invert sugar
(c)
Oligosaccharides
Marking-scheme solution
(a)
The oxide linkage between two monosaccharides.
(b)
Hydrolysis of sucrose brings about a change in the sign of rotation, from dextro (+) to laevo
(–) and the product is named as invert sugar.
(c)
Carbohydrates that yield two to ten monosaccharide units, on hydrolysis.
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CBSE Class 12 Chemistry past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.