What happens when `1^@`, `2^@` and `3^@` alcohols are passed over red hot copper ? Give equations.

Explanation

When vapours of primary, secondary and tertiary alcohols are passed over red ho 573 K, then aldehydes, ketones and alkenes are formed respectively.
i) `underset("Ethanol"1^@)(CH_(3)-overset(OH)overset(|)underset(H)underset(|)C-H) overset(Cu//573 K)underset(-H_2)rarr CH_(3) - underset("Ethanal")(overset(O)overset(||)C-H)`
ii) `underset("Propan-2-ol"(2^@))(CH_(3) - overset(OH)overset(|)underset(CH_3)underset(|)C-H) overset(Cu//573 K)underset(-H_2)rarr underset("Propanone")(CH_(3)- overset(O)overset(||)C-CH_(2))`
iii) `underset("2-Methylpropan-2-ol"3^@)(CH_(3)-overset(OH)overset(|)underset(CH_3)underset(|)C-H) overset(Cu//573K)underset(-H_2O) rarr underset("2-Methylpropene")(CH_(3)-underset(CH_3)underset(|)C=CH_2)`