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Structure and Properties of Peptides

Q1: The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?

A C20H50O20N10

B C20H32O11N10

C C20H40O10N10

D C20H68O29N10

ANS:B - C20H32O11N10

Condensation means loss of water. For linking two glycine molecules one water molecule is lost so for 10 glycines, 9 water molecules are lost so answer B is correct.



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