In the presence of platinum, how many moles of H2 are added when benzene is heated?
Correct answer: B. Three
- A. Four
- B. Three
- C. Six
- D. One
Explanation
When benzene is heated with hydrogen in the presence of platinum, three moles of hydrogen are added to benzene to form cyclohexane. The reaction is known as catalytic hydrogenation
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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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