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Consider the following amines along with their pK_b values
Amines pK_b
Methanamine (I) 3.38
N-methylmethanamine (II) 3.27
Benzenamine (III) 9.38
Phenylmethanamine (IV) 4.70
Which one is the strongest base?

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Benzenamine

Methanamine

N-methyl methanamine

Phenylmethanamine

answer is D.

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Detailed Solution

Larger the value of K_b or smaller the value of pK_b stronger is the base. Hence, N-methyl methanamine is the strongest base among the given.

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