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  • Correct order of the basic strength of amines is : Option: 1 <img alt="\mathrm{(CH_3)_2 - NH< CH_3 -NH_2 < (CH_3 )_3 N}" src="https://entr

Correct order of the basic strength of amines is : 

Option: 1

\mathrm{(CH_3)_2 - NH< CH_3 -NH_2 < (CH_3 )_3 N}


Option: 2

\mathrm{CH_3 - NH_2 < (CH_3)_3 N < (CH_3)_2NH}


Option: 3

\mathrm {CH_3- NH_2 < (CH_3 ) _2 - NH< (CH_3 )_3 N}


Option: 4

\mathrm{(CH_3 ) _3N < CH_3 -NH_2 < (CH_3 )_2 - NH}


Answers (1)

best_answer

 CH_3  group because of its  + I effect increases the basicity of amines , but in tertiary amines because of larger size of CH_3 group it exibits steric inhibition in protonation and thus 3 \degree  amines are lesser basic than 1 \degree amine and  2 \degree  amines are most basic 

Hence, the correct answer is Option (4)

Posted by

avinash.dongre

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