The number of chiral carbons in chloramphenicol is

Acquired immune deficiency syndrome $(AIDS)$ is characterized by:

The number of chiral centres in penicillin is

Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent?

Measles is a disease which belongs to the category of

Which of the following statements are correct?
$(A)$ $A$ tripeptide has two peptide bonds.
$(B)$ $A$ pentapeptide contains five amino acids.
$(C)$ Nucleotide is a product of base and sugar.
$(D)$ In cellulose,$\beta$-glycosidic linkages are present.