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Arrange the Following in the Increasing Order of Their Pkb Values: - Chemistry

 Arrange the following in the increasing order of their pKvalues:

C6H5NH2, C2H5NH2, C6H5NHCH3

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Solution

Order of pKb values-

C2H5NH2 < C6H5NHCH3 < C6H5NH2

This is simply because +I effect of C2H5 group increases the basicity of amine while -I effect of C6Hgroup decreases the basicity of Amine.

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