The number of chiral carbons in chloramphenicol is

Measles is a disease which belongs to the category of

Which of the following contain $\alpha$-$D$-glucose units?
$a$) Cane sugar
$b$) Milk sugar
$c$) Cellulose
$d$) Amylose

Which of the following does not reduce Fehling's solution?

The structure of the hormone thyroxine is given below. The percentage of iodine in thyroxine is $..........\%$. ($nearest$ $integer$)
($Given$ $molar$ $mass$ $in$ $g \ mol^{-1}: C: 12, H: 1, O: 16, N: 14, I: 127$)

Seliwanoff test and Xanthoproteic test are used for the identification of $....$ and $....$ respectively.