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Haloalkanes and Haloarenes

Short Answer Type

111.

Give the name of the catalyst used in Friedel-Crafts reaction.

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112. Name the products formed when 1-chloropropane is treated with
(i) aq. KOH
(ii) alcoholic KOH.

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113.

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

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114.
What is Wurtz reaction?

Wurtz reaction: Alkyl halides react with sodium in dry ether to give hydrocarbons containing double the number of carbon atoms present in the halide. This reaction is known as Wurtz reaction.

RX + 2Na + XR’ → R—R’ + 2NaX

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115.

Arrange the following halides in order of increasing S_N2 reactivity:
CH₃Cl, CH₃Br, CH₃CH₂Cl, (CH₃)₂CHCl.

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116.

Write the various structures of C₇H₇Cl containing benzene ring. Which of these has the weakest C—Cl bond?

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117.

Identify the products A, B and C in the following:
$straight C subscript 2 straight H subscript 5 straight I space rightwards arrow with alc. space KOH on top space straight A space rightwards arrow with Br subscript 2 on top space straight B space rightwards arrow with KCN on top space straight C$