among-the-four-given-aldotetroses-which-are-c-2-epimers-and-which-are-enantiomer

Question

Among the four given aldotetroses, which are C2 epimers, and which are enantiomers?

Accepted Answer

C-2 epimers: D-erythrose and D-threose; L-erythrose and L-threose

Enantiomers: D-erythrose and L-erythrose; D-threose and L-threose

Answer

C-2 epimers: D-erythrose and L-erythrose; D-threose and L-threose

Enantiomers: D-erythrose and D-threose; L-erythrose and L-threose

Answer

C-2 epimers: D-erythrose and L-threose; L-erythrose and D-threose

Enantiomers: D-erythrose and L-erythrose; D-threose and L-threose

Answer

C-2 epimers: D-erythrose and D-threose; L-erythrose and L-threose

Enantiomers: D-erythrose and L-threose; D-threose and L-erythrose