Determine whether the molecules below are reducing sugars or not.
(i) α-D-galactopyranose
(ii) methyl β-D-xylofuranoside

• A. (i) reducing sugar(ii) not a reducing sugar
• B. (i) not a reducing sugar(ii) not a reducing sugar
• C. (i) reducing sugar(ii) reducing sugar
• D. (i) not a reducing sugar(ii) reducing sugar

Answer: (A)