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A decapeptide (Mol. Wt. $796$) on complete hydrolysis gives glycine (Mol. Wt. $75$), alanine and phenylalanine. Glycine contributes $47.0 \%$ to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is
  • A$4$
  • B$5$
  • C$6$
  • D$7$
IIT 2011, Difficult
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