CBSE Class 12 Chemistry 2016 Outside Delhi Set 1 Solved Paper

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Question : 19
Total: 26
How do you convert:
(i) Chlorobenzene to biphenyl,
(ii) Propene to 1-iodopropane,
(iii) 2-bromobutane to but-2-ene.
OR
Write the major product (s) in the following:
(i)
(ii) 2CH3
CH
|
Cl
CH3
Na
dry ether
?
(iii) CH3CH2Br
AgCN
?
Solution:  
(i)

(ii) CH3CH=CH2
HBr peroxide
CH3CH2CH2Br
Nal / acetone
CH3CH2CH2I
(iii) CH3CH2
CH
|
Br
CH3
Alc.KOH
CH3CH=CHCH3
OR(i)
(ii) CH3
CH3
|
CH
CH3
|
CH
CH3

(iii) CH3CH2NC
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