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Haloalkanes and Haloarenes
Question
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Arrange the following halides in order of increasing SN2 reactivity:
CH3Cl, CH3Br, CH3CH2Cl, (CH3)2CHCl.

Answer

C-Cl bond is stronger and more diffcult to cleave than C-Br bond. Also, as the size of the alkyl group increase, the SN2 reactivity decrease. Thus order is given by,
(CH3)2CHCl < CH3CH2Cl < CH3Cl < CH3Br.

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Some More Questions From Haloalkanes and Haloarenes Chapter

Why is sulphuric acid not used during the reaction of alcohols with KI?

Write structures of different dihalogen derivatives of propane.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i) A single monochloride.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i)Three isomeric monochlorides.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:
Four isomeric monochlorides.

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions:

Draw the structures of major monohalo products in each of the following reactions: