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Chapter 8: Q.8-8-66E-a (page 262)

How would you distinguish between the following pairs of compounds using simple chemical tests? Tell what you would do and what you would see.

(a) Cyclopentene and cyclopentane

Short Answer

Expert verified

Cyclopentene shows the bayer's test and bromine water test but cyclopentane does not show this test.

Step by step solution

01

Bayer's test

Cyclopentene is an unsaturated compound having a double bond, and cyclopentane is a saturated compound having a single bond.

Cyclopentene on reaction with KMnO4 forms 1,2 diol and decolorizes the purple color of potassium permanganate, but cyclopentane does not show decolorization.

02

Bromine water test

Cyclopentene is an unsaturated compound having a double bond and cyclopentane is a saturated compound having a single bond.

Cyclopentene on reaction with bromine water shows decolorization but when cyclopentane reacts with bromine water no decolorization is observed.

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Most popular questions from this chapter

Show the structures of alkenes that give the following products on oxidative cleavage with in acidic solution:


a.CH3CH2CO2H+CO2

One problem with elimination reactions is that mixtures of products are often formed. For example, treatment of 2-bromo-2-methylbutane with KOH in ethanol yields a mixture of two alkene products. What are their likely structures?

What products would you expect from oxymercuration-demercuration of the following alkenes?

a)

b)

Question:The addition of HCl to 1-methoxycyclohexene yields 1-chloro-1-methoxycyclohexane as a sole product. Use resonance structures of the carbocation intermediate to explain why none of the alternate regioisomers isformed.

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