Which of the following is the strongest acid?

Identify the major product from the following reaction sequence:
$Cyclohexyl-CH_2CH_2OH \xrightarrow[(ii) Cl_2/Red \ P \ (iii) H_2O]{(i) CrO_3, H_2SO_4}$

Identify the compounds $A$,$B$,and $C$ in the following reaction sequence:
$CH_3-Br$ $\xrightarrow{Mg, \text{Ether}} [A]$ $\xrightarrow[(ii) \text{Water}]{(i) CO_2} [B]$ $\xrightarrow{CH_3OH, H^+} [C]$

An organic compound is boiled with alcoholic potash. The product is cooled and acidified with $HCl$,resulting in the precipitation of a white solid. What could be the starting compound?

Concentrated nitric acid oxidises cane sugar to

What is glacial acetic acid?