AP EAMCET · Chemistry · Hydrocarbons
Identify the most suitable reagents (I) and (II) for the following sequence of reactions
- A \((\mathrm{I})=\) conc. \(\mathrm{H}_2 \mathrm{SO}_4,(\mathrm{II})=\mathrm{HBr}\)
- B \((\mathrm{I})=\) aq. \(\mathrm{KOH},(\mathrm{II})=\mathrm{HBr} /\) peroxide
- C \((\mathrm{I})=\) alc. \(\mathrm{KOH},(\mathrm{II})=\mathrm{HBr} /\) peroxide
- D \((\mathrm{I})=\) alc. \(\mathrm{KOH},(\mathrm{II})=\mathrm{HBr}\)
Answer & Solution
Correct Answer
(D) \((\mathrm{I})=\) alc. \(\mathrm{KOH},(\mathrm{II})=\mathrm{HBr}\)
Step-by-step Solution
Detailed explanation
When 1-bromopropane react with alcoholic \(\mathrm{KOH}\), it will form prop-1-ene \((X)\). Alcoholic \(\mathrm{KOH}\) is used to give elimination reaction. In next step, \(\mathrm{HBr}\) (II) is used to give Markownikoff's addition to the alkene and produces 2-bromopropane.
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