Assignment:

1. Write the reaction involved in Ninhydrin reaction?
2. Do all the amino acids with aromatic side chains give positive test to Xanthoproteic acid test. Why?
3. You have Cysteine, Tyrosine, Histidine in separate test tubes. By using which test would you find Cysteine containing test tubes?
4. What is the role of H2SO4 in Hopkins cole test?
5. Take an Unknown amino acid in your lab and Carry out the amino acid tests in a responsible sequence to determine your unknown solution?