n-Heptane can be converted into benzene by catalysts:
Correct answer: C. Al_2 O_3 , SiO_2 , Cr_2 O_3
- A. Al_2 O_3 , SiO_2 , Fe_2 O_3
- B. SiO_2 , K_2 O, Cr_2 O_3
- C. Al_2 O_3 , SiO_2 , Cr_2 O_3
- D. None of these
Explanation
The conversion of n-heptane to benzene is a process called aromatization. This reaction requires a catalyst that can promote the dehydrogenation and cyclization of the n-heptane molecule.The most commonly used catalysts for aromatization are metal oxides, such as:Al_2 O_3 (Aluminum oxide): Acts as a Lewis acid, promoting the dehydrogenation of n-heptane.SiO_2 (Silicon dioxide): Provides a support structure for the catalyst and helps in maintaining its activity.Cr_2 O_3 (Chromium oxide): Acts as a redox catalyst, facilitating the transfer of electrons during the reaction.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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