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What happens when 1^(@),2^(@),3^(@) alco...

What happens when `1^(@),2^(@),3^(@)` alcohols are passed over heated heated at 573 K.

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Primary alcohols `(1^(@))` undergoes de-hydrogenation forming an aldehyde `R-CH_(2)-OH underset(573K)overset(Cu)to R-CHO+H_(2)`
Secondary alcohol `(2^(@))` undergoes de-hydrogenation forming a ketone.
`R-underset(OH)underset(|)(CH)-R' underset(573K)overset(Cu)to R-underset(O)underset(||)(C)-R'+H_(2)`
Tertiary alcohol `(3^(@))` undergoes dehydration forming an alkene.
`underset("tert-butylalcohol")(CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OH) underset(573K)overset(Cu)to underset("2-methyl propene")(CH_(3)-overset(CH_(3))overset(|)(C)=CH_(2)`
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