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 Multiple Choice QuestionsShort Answer Type

451.

How do you convert:
i) Chlorobenzene to biphenyl
ii) propene to 1-iodopropane
iii) 2-bromobutane to but-2ene

Or
Write the major products(s) in the following:

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452.

Write the final product (s) in each of the following reactions:

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453.

Write the IUPAC name of the following compound: CH2 = CHCH2Br

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454.

(a) Draw the structures of major monohalo products in each of the following reactions :


(b) Which halogen compound in each of the following pairs will react faster in SN2 reaction:
(i) CH3Br or CH3I
(ii) (CH3)3C−Cl or CH3−Cl

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455.

Write IUPAC name of the following compound :
(CH3CH2)2NCH3

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456.

Write the structure of 1-Bromo-4-chlorobut-2-ene.

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457.

Following compounds are given to you :
2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane
(i) Write the compound which is most reactive towards SN2 reaction.
(ii) Write the compound which is optically active.
(iii) Write the compound which is most reactive towards b-elimination reaction.

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458.

Write structures of compounds A, B and C in each of the following reactions

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459.

Write structures of compounds A, B and C in each of the following reactions

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460.

Out of chlorobenzene and benzyl chloride, which one gets easily hydrolysed by aqueous NaOH and why?


Benzyl chloride gets easily hydrolysed by aqueous NaOH because chlorobenzene a partial double bond develops between carbon and chlorine bond due to which bond become short and strong substitution of chlorine become very difficult.


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