When vapours of ethyl alcohol are passed over `Al_(2)O_(3)` at `250^(@)C`, it forms

The vapours of ethyl alcohol are passed over red hot copper at 573 K to form:

What is the main product obtained when vapours of tert.-butyl alcohol are passed over copper at 573K?

What happens when acetic acid vapours are passed over P_(2)O_(5) ?

Ethyl alcohol is heated with conc. H_(2)SO_(4) at 170^(@)C . The product formed is:

When vapours of an alcohol are passed over hot reduced copper, it gives an alkene. The alcohol is

A : The dehydration of ethyl alcohol in presence of Al_(2)O_(3) at 633 K gives ethene. R : The reaction proceed through the formation of carbocation intermediate.

Benzene vapour mixed with air when passed over V_2O_5 catalyst at 775 K give

Assertion : When the vapours of a primary, secondary or tertiary alcohol are passed over heated copper at 573 K, an aldehyde or ketone is formed. Reason : Reduction of alcohols takes place

The Gibbs energy for the decomposition of Al_(2)O_(3) at 500^(@)C is as follows: (2)/(3)Al_(2)O_(3) rarr (4)/(3)Al + O_(2), Delta_(r)G = +966kJ mol^(-1) The potential difference needed for electrolytic reeduction of Al_(2)O_(3) at 500^(@)C is at least: