Alkyl chloride when passed over silicon at `300^(@)`C in the presence of Cu catalyst gives

Ethyl alcohol when passed over copper at 300^(@)C is dehydrogenated to give....

The dehydrogenation of n- Hexane in the presence of a catalyst gives ______.

Phenol on hydrogenation in the presence of nickel catalyst at 160^(@)C gives

On heating a mixture of hydrogen and carbon monoxide gases at 300°C in the presence of nickel (catalyst) ………is formed.

Methane reacts with oxygen at 100 atm and 300^@C in presence of Cu to give:

When bezoyl chloride si reduced by H_(2) in the presence of Pd catalyst, the product is benzyl alcohol. If BaSO_(4) is mixed with the catalyst before passing the gas, the product is benzaldehyde. Assign reason.