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71.

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

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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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74.

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

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

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

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Ethyl chloride reacts with alcoholic AgNO₃ solution to give white ppt of AgCl whereas vinyl chlorides does not react.

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78. Name the product when chloroform reacts with
(a) Nitric acid
(b) Silver powder.

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79.

Write IUPAC names of isomers $straight C subscript 2 straight H subscript 4 Cl subscript 2$ .

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80.

Haloalkanes undergo nuclephilic substitution reaction. Give reason.

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