The reagent used for the dehydration of an alcohol is

Which of the following compounds can be used as antifreeze in automobile radiators?

Provide the reactions of alcohols and phenols where the $O-H$ bond breaks to form $-OCOR$ (ester) compounds.

$(CH_3)_2CHOH$ $\xrightarrow{PCC} X$ $\xrightarrow[(ii) H_2O]{(i) CH_3MgBr} Y$. What is $Y$?

Write the structures of different isomeric alkyl groups corresponding to the molecular formula $C_{5}H_{11}$. Write the $IUPAC$ names of the alcohols obtained by the attachment of $-OH$ groups at different carbons of the chain.

Which of the following intermediates is formed when an alcohol reacts with concentrated $H_2SO_4$?