Among Me3N, C5H5N and MeCN (Me = methyl group) the electronegativity of N is in the order

Question

Among Me3N, C5H5N and MeCN (Me = methyl group) the electronegativity of N is in the order (A) MeCN > C5H5N > Me3N (B) C5H5N > Me3N > MeCN (C) Me3N > MeCN > C5H5N (D) Electronegativity same in all

Tardigrade Admin · Accepted Answer

∵ In Me 3 N arrow N is s p3-hybrid

In C 5 H 5 N arrow N is s p2-hybrid

and in MeCN arrow N is s p-hybrid Also electronegativity of any element α % s-character in hybrid orbitals. Thus, order of electronegativity for nitrogen is MeCN > C 5 H 5 N < Me 3 N

Q. Among $M e_{3} N, C_{5} H_{5} N$ and $M e CN$ ( $M e$ = methyl group) the electronegativity of $N$ is in the order

$M e CN > C_{5} H_{5} N > M e_{3} N$

$C_{5} H_{5} N > M e_{3} N > M e CN$

$M e_{3} N > M e CN > C_{5} H_{5} N$

Electronegativity same in all

$∵$ In $M e_{3} N \to N$ is $s p^{3}$ -hybrid

In $C_{5} H_{5} N \to N$ is $s p^{2}$ -hybrid

and in $M e CN \to N$ is $s p$ -hybrid
Also electronegativity of any element $α %$ $s$ -character in hybrid orbitals.
Thus, order of electronegativity for nitrogen is
$M e CN > C_{5} H_{5} N < M e_{3} N$

Q. Among Me3​N,C5​H5​N and MeCN (Me = methyl group) the electronegativity of N is in the order

MeCN>C5​H5​N>Me3​N

C5​H5​N>Me3​N>MeCN

Me3​N>MeCN>C5​H5​N

Electronegativity same in all

∵ In Me3​N→N is sp3-hybrid In C5​H5​N→N is sp2-hybrid and in MeCN→N is sp-hybrid Also electronegativity of any element α% s-character in hybrid orbitals. Thus, order of electronegativity for nitrogen is MeCN>C5​H5​N<Me3​N

Q. Among $M e_{3} N, C_{5} H_{5} N$ and $M e CN$ ( $M e$ = methyl group) the electronegativity of $N$ is in the order

$M e CN > C_{5} H_{5} N > M e_{3} N$

$C_{5} H_{5} N > M e_{3} N > M e CN$

$M e_{3} N > M e CN > C_{5} H_{5} N$