What substrates are required to add a NO2 group to benzene?
Correct answer: B. Concentrated HNO3/Concentrated H2SO4/50˚C
- A. Concentrated HNO3/Concentrated H2SO4/100˚C
- B. Concentrated HNO3/Concentrated H2SO4/50˚C
- C. Concentrated HNO3/50˚C
- D. Concentrated HNO3/100˚C
- E. Concentrated HNO3/Concentrated HCl/50˚C
Explanation
Nitration happens when one (or more) of the hydrogen atoms on the benzene ring is replaced by a nitro group, NO2. Benzene is treated with a mixture of concentrated nitric acid and concentrated sulfuric acid at a temperature not exceeding 50°C.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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