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NEET · Chemistry · STD 12 - 9. Amines
The correct order of the basic strength of methyl substituted amines in aqueous solution is
- A \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}>\mathrm{CH}_{3} \mathrm{NH}_{2}>\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N} \)
- B \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N}>\mathrm{CH}_{3} \mathrm{NH}_{2}>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
- C \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N}>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH} > \mathrm{CH}_{3} \mathrm{NH}_{2}\)
- D \(\mathrm{CH}_{3} \mathrm{NH}_{2}>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}>\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N}\)
Answer & Solution
Correct Answer
(A) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}>\mathrm{CH}_{3} \mathrm{NH}_{2}>\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N} \)
Step-by-step Solution
Detailed explanation
The order of basic strength in case of methyl substituted amines and ethyl substituted amines in aqueous solution is as follows: \(\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{2} \mathrm{NH}>\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{3} \mathrm{N}>\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{2}>\mathrm{NH}_{3}\)
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