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Chemistry · 2023 · 3 marks
CBSE 2023 · Region 1 · Set 1 · Q30
(a) What are the hydrolysis products of (i) Lactose, (ii) Maltose? (b) Give the basic structural difference between starch and cellulose.
(a)
What are the hydrolysis products of (i) Lactose, (ii) Maltose?
(b)
Give the basic structural difference between starch and cellulose.
Marking-scheme solution
(a)(i)
Glucose and Galactose
(ii)
Glucose and Glucose
(b)
Starch is a polymer of \(\displaystyle \alpha\)-glucose while cellulose is a polymer of \(\displaystyle \beta\)-glucose
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.