Ethyl alcohol vapour is passed over alumina heated at about `250^(@)`. The major product formed in the reaciton is

Ethyl alcohol vapour is passed over alumina heated at about 250^(@) . The major product formed in the reaction is

Isopropyl alcohol vapour is passed over alumina heated at about at about 240^(@)C . The product formed is-

The major product of the following reaciton is

When ethanol vapours are passed over alumina heated at 350^(@)C the main product obtained is

Ethyl alcohol vapours when passed over alumina at 573K, the product obtained is

Vapor of t -butyl alcohol is passed over copper heated to 300^(@)C . The product formed is

Vapor of ethyl alcohol is passed over heated alumina at 375^(@)C . The product is

When ethyl alcohol is passed over red hot copper at 300^@C the formula of the product formed is

What happens when isopropyl alcohol vapour is passed over red hot copper at 300^@C and the product formed is treated with Zinc amalgam and Conc-HCl?

When excess vapour of ethyl alcohol are passed over heated alumina at 523K, the main product formed is