The final product $(III)$ is

Ethylene glycol,on oxidation with periodic acid $(HIO_4)$,gives:

Which of the following alcohols has the highest boiling point?

Identify the correct trend of acidic strength for the given alcohols.

Which of the following is $NOT$ produced by the reaction of ethanol with $H_2SO_4$?

Name the reagents used in the following reactions:
$(i)$ Oxidation of a primary alcohol to carboxylic acid.
$(ii)$ Oxidation of a primary alcohol to aldehyde.
$(iii)$ Bromination of phenol to $2,4,6-$tribromophenol.
$(iv)$ Benzyl alcohol to benzoic acid.
$(v)$ Dehydration of propan$-2-$ol to propene.
$(vi)$ Butan$-2-$one to butan$-2-$ol.