Hydrocarbons Question 415

Question: On passing vapours of an organic liquid over finely divided Cu at $ 573K $ the product was an alkene. This reaction is

Options:

A) Catalytic oxidation of primary alcohol

B) Catalytic dehydrogenation of secondary alcohol

C) Catalytic dehydrogenation of tertiary alcohol

D) Catalytic dehydration of tertiary alcohol

Show Answer

Answer:

Correct Answer: D

Solution:

$ CH_3-\underset{\underset{CH_3}{\mathop{|}}}{\overset{\overset{CH_3}{\mathop{|}}}{\mathop{C-}}}OH\underset{300^{o}C}{\mathop{\xrightarrow{Cu}}}\underset{Isobutene}{\mathop{CH_3-\underset{\underset{CH_2}{\mathop{||}}}{\overset{\overset{CH_3}{\mathop{|}}}{\mathop{C+}}}H_2O}} $