CH33CH→KMnO4  A →Cu/573 K  B ; The compound ‘B’ is

Alkanes containing 3° H-atoms undergo oxidation in presence of KMnO4 .(CH3)3CH→KMnO4 CH33COH3° alcohols when heated with Cu/573 K gives alkene. They undergo dehydration instead of dehydrogenation (CH3)3COH→573 KCuCH32C=CH2 .