How would you name the following compounds?

How would you convert the following compounds into benzene?Phenol.

How would you convert the following compounds into benzene?Ethyne.

How will you convert the following compounds? Give equation only. But-2-ene from but-1-ene

How will you convert the following compounds? Give equation only. Ethoxyethane from ethanol

How will you convert the following compounds? Give equation only. Tolune from phenol

How would you account for the following? The transition metal compounds are good catalyst.

How would you account for the following? The enthalpies of atomization of the transition metals are high.

How would you account for the following facts: The aldehydes and Ketones undergo a number of addition reactions.

How would you account for the following facts: The boiling points of aldehydes and Ketones are lower than that of the corresponding acids.