CBSE 2026 · Region 4 · Set 3 · Q18 · 2 marks
What is the effect of denaturation on the structure of proteins ? What are the common types of secondary structures of proteins?
Marking-scheme solution
During denaturation secondary and tertiary structures are destroyed.
α-helix and β-pleated sheet structure
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.