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Question

Chitin is the second most abundant organic substance present in the exoskeleton of insects and crustaceans. It is a

[A] Lipid

[B] Protein and CaCO3 deposits in it

[C] Polysaccharide and the basis unit is N-acetylglucosamine

[D] Protein

Answer & Explanation
Answer: Polysaccharide and the basis unit is N-acetylglucosamine

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