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JEE Mains · Chemistry · STD 12 - 9. Amines
Considering the basic strength of amines in aqueous solution, which one has the smallest \(pK_b\) value ?
- A \((CH_3)_2NH\)
- B \(CH_3NH_2\)
- C \((CH_3)_3N\)
- D \(C_6H_5NH_2\)
Answer & Solution
Correct Answer
(A) \((CH_3)_2NH\)
Step-by-step Solution
Detailed explanation
Order of basic strength of aliphatic amine in aqueous solution is as follows (order of \(K_{b}\) ) \(\left(\mathrm{CH}_{3}\right)_{2} \bar {N}H>\mathrm{CH}_{3} \bar {N}H_{2}>\)\(\left(CH_{3}\right)_{3} \bar {N}>\mathrm{C}_{6}\ mathrm{H}_{5} \bar {N} \mathrm{H}_{2}\) As we know…
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