1.  α-D-galactose

2.  α-D-glucose

3.  β-D-galactose

1.  Ply glycolic acid

2.  Poly lactic acid

3.  Nylon-2-Nylon-6

2.  ePolyethylen

3.  Dcaron

4.  Nylon-6,6

1.  Polymethylene

2.  Polyesters

3.  Cellulose

2.  Dextro rotatary

3.  Optically inactive

4.  Recemic mixture

1.  Glycine

2.  Alanine

4.  Serine

2.  Mercurous and mercuric chloride in HCl

3.  Mercurous and mercuric chloride in HNO3

4.  All the above

2.  β-amino acids

3.  α-hydroxy acids

4.  β-hydroxy acids

1.  HS2O3-

2.  H2S2O8

3.  H2SO4

1.  

3.  

4.