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1.Describe the ozonolysis of alkenes (of 5 marks question) 2.one mole of a hydrocarbon(A) reacts with one mole of beomine giving a dibromo compound C5H10Br2.Substance A on treatment with cold dilute kMnO4 solution forms a compound C5C12O2(C5H12O2) on ozonolysis A,gives equimolar quantities of propanone and ethanol.Deduce the structure of substance A.

1.Describe the ozonolysis of alkenes (of 5 marks question)


2.one mole of a hydrocarbon(A) reacts with one mole of beomine giving a dibromo compound C5H10Br2.Substance A on treatment with cold dilute kMnO4 solution forms a compound C5C12O2(C5H12O2) on ozonolysis A,gives equimolar quantities of propanone and ethanol.Deduce the structure of substance A.

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3 Answers

G Narayana Raju
51 Points
10 years ago

File:Ozonolysis Scheme.png

Nikhil Cherukupalli
16 Points
10 years ago

1)The first question has a lengthy mechanism so Id recommend you to read it in some standard the textbook.. Basically,the final products after performing ozonolysis are 1)aldehydes and ketones (in O3+Zn+water medium) 2) carboxylic acids and ketones( in O3+water medium) 3) alcohols (in O3 + LiAlH4 medium)

Nikhil Cherukupalli
16 Points
10 years ago

2) I guess A is

1734_46802_org.JPG

The final products after test 3 are propanol and enthanal...not ethanol!

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