Write IUPAC names of the products obtained by addition reactions

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 Multiple Choice QuestionsLong Answer Type

151.

Discuss the free radical mechanism of addition of HBr to propene.
Or
Give the mechanism of addition of HBr to propylene in the presence of peroxide.

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152. Write IUPAC names of the products obtained by addition reactions of HBr to hex-1-ene:
(i) in the absence of peroxide and
(ii) in the presence of peroxide.


(i) In the absence of peroxide. Hexene reacts with HBr in the absence of organic peroxide to form 2-Bromohexane. Addition takes place according to Markownikoffs rule.





(ii) In the presence of peroxide. Hex-1-ene reacts with HBr in the presence of peroxide to form 1-bromohexane.




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153.

The addition of HBr to propene yields 2-broniopropane, while in the presence of benzoyl peroxide, the same reaction yields 1-bromopropane. Explain and give mechanism. 

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 Multiple Choice QuestionsShort Answer Type

154.

Why peroxide effect is shown only by HBr and not by HCl or HI?
Or
Explain why Kharasch effect is shown by HBr only and not by HCl or HI.

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 Multiple Choice QuestionsLong Answer Type

155. Discuss the mechanism of formation of halohydrin.
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156.

How do alkenes react with sulphuric acid? Discuss its mechanism.

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 Multiple Choice QuestionsShort Answer Type

157.

Write a short note on hydroboration oxidation.

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 Multiple Choice QuestionsLong Answer Type

158.

What is ozonolysis? What is its significance?

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 Multiple Choice QuestionsShort Answer Type

159.

Write IUPAC names of the products obtained by the ozonolysis of the following compounds:
Pent - 2-ene 

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160.

Write IUPAC names of the products obtained by the ozonolysis of the following compounds:
 3, 4-Dimethlhept-3-ene

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