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31.

What is the function of anhydrous zinc chloride in the reaction between alcohols and hydrogen halide?

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32.

Name one reagent that is used to convert alcohols into chloroalkanes.

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The molecular masses of alkyl halides (haloalkanes) are higher than that of corresponding parent haloalkanes.

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34.

Which will have higher boiling point CH₃—CH₂—CH₂—CH₂—Br or CH₃—CH(CI)— CH₃? Give reason.

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35.

Give reason: The order or decreasing boiling points is
CH₃I > CH₃Br > CH₃CI > CH₃F.

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36.

Name the product formed when benzene diazonium chloride solution is warmed with aqueous KI.

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37.

Why is the boiling point of iodo-benzene higher than chlorobenzene?

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38. State what happens when isopropyl chloride is boiled with alcoholic potassium hydroxide solution.

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39. Why is the reactivity of haloarenes low in nucleophilic substitution reactions?

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40.

Write the Frankland's reaction shown by haloalkanes.

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