Benzene is obtained from benzene sulphuric acid by treating with
Correct answer: C. H2O
- A. HCl
- B. NaOH
- C. H2O
- D. NaHCO3
Explanation
The process to convert benzene sulfonic acid back to benzene is called desulfonation or hydrolysis. It involves heating the sulfonic acid with hot water (steam) at elevated temperatures (around 180-200°C).During this reaction, the sulfonic acid group (-SO3H) detaches from the benzene ring, and a water molecule is incorporated, forming benzene and sulfuric acid:C6H5SO3H + H2O → C6H6 + H2SO4This reaction is typically catalyzed by acids, which promote the cleavage of the C-S bond in the sulfonic acid group.
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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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