Compound A has a molecular formula C5H11Br. Compound A reacts
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Compound A has a molecular formula C5H11Br. Compound A reacts

[From: ] [author: ] [Date: 11-09-17] [Hit: ]
c. B could be cyclopentene and Y could be cold,d. A could be 1-bromopentane and Y could be cold,e. B could be 2-pentene and Y could be H+-Diols usually arise from the oxidation of alkenes by KMnO4,......
Hi, can't find how to do this question in my notes, would love an explanation too. Thank!

Compound A has a molecular formula C5H11Br. Compound A reacts
with KOH in ethanol to give compound B which when reacted with Y gives
1,2-pentanediol. Which of the following statements is true?

a. B could be 1-pentene and Y could be H+

b. A could be 1-bromopentane and Y could be B2H6/H2O2/OH-

c. B could be cyclopentene and Y could be cold, dilute KMnO4

d. A could be 1-bromopentane and Y could be cold, dilute KMnO4

e. B could be 2-pentene and Y could be H+

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Diols usually arise from the oxidation of alkenes by KMnO4, but it's more than likely that A is actually 2-bromopentane, and the action of KOH in ethanol leads to an E2 reaction producing 1-pentene, a situation which really doesn't fit any of your answers.

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d.
1
keywords: Compound,molecular,reacts,11,Br,has,formula,Compound A has a molecular formula C5H11Br. Compound A reacts
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