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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?

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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:
$straight C subscript 2 straight H subscript 5 straight I space rightwards arrow with alc. space KOH on top space straight A space rightwards arrow with Br subscript 2 on top space straight B space rightwards arrow with KCN on top space straight C$

When ethyl iodide is treated with alc. KOH. It gives ethene which reacting with bromine gives 1,2 dibromoethane and further reacting with KCN gives ethlene dicyanide.

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118.

Give chemical equation for the reaction by which propene can be obtained from 1-bromopane.

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119. State the conditions under which methyl chloride from aluminium carbide preparation is carried out and give the necessary equation.

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120.

Write the structure of all the possible isomes of dichloro ethene. Which of these will have zero dipole moment?

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Previous Year Papers

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Test Yourself

Short Answer Type

117. Identify the products A, B and C in the following: