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(i) When 2-bromobutane is treated with alcoholic KOH, it form 2-butene as main product. (ii) When CH 3 CH 2 C(CH 3 ) 2 Cl is treated with alcoholic KOH, it form CH 3 CH = C(CH 3 ) 2 as main product.

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Haloalkanes and Haloarenes

Multiple Choice Questions

71.

Which one of the following has, the highest dipole moment?

CH₂CI₂
CHCl₃
CCl₄

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Short Answer Type

72. p-methoxy benzyl bromide reacts faster than para nitrobenzyl bromide with ethanol to form an ether product. Explain why?

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73. Explain the formation of two products in the following reactions:
CH₃CH = CHCH₂Cl + H₂O →
CH₃CH = CH.CH₂OH + CH₃CH(OH)CH = CH

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One Word Answers

74.

Which metal is used in the preparation of Grignard's reagent from haloalkanes?

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Multiple Choice Questions

75. Which of the following is most reactive alcohol for its reaction with HCl?

(CH₃)₃COH
(CH₃)₂ CHCH₂ OH

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Short Answer Type

76. Which will be the main product when the following haloalkanes are treated with alcoholic KOH?
(i) 2-bromobutane
(ii) CH₃CH₂C(CH₃)₂Cl.

(i) When 2-bromobutane is treated with alcoholic KOH, it form 2-butene as main product.

(ii) When CH₃CH₂C(CH₃)₂Cl is treated with alcoholic KOH, it form CH₃CH = C(CH₃)₂ as main product.

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