The best method to prepare cyclohexene from cyclohexanol is by using

Ketone upon treatment with Grignard reagent gives

Which will not form yellow precipitate on heating with an alkaline solution of iodine?

What is the functional group of alcohols?

During dehydration of alcohols to alkenes by heating with concentrated ${H_2}S{O_4}$ the initiation step is

The starting material for the preparation of ${\rm{C}}{{\rm{H}}_3}{\rm{I}}$ in one step reaction is:

In the reaction sequence: Ethanol $\xrightarrow{Na}$ P $\xrightarrow{PCl_5}$ Q; what is the structural formula of Q?

Methanol cannot be dried with anhydrous ${\rm{CaC}}{{\rm{I}}_2}$ because

Acetylene and formaldehyde interact in the presence of copper acetylide as a catalyst to furnish the compound:

The correct order of boiling point for primary (1$^\circ$), secondary (2$^\circ$) and tertiary (3$^\circ$)alcohols is

An organic compound $A$ containing C, H and O has a pleasant odour with boiling point of 78$^ \circ C$. On boiling $A$ with concentrated ${\rm{\;}}{{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$, a colourless gas is produced which decolourises bromine water and alkaline ${\rm{KMn}}{{\rm{O}}_4}$. The organic liquid $A$ is