An isostere is - Vidyadip

MCQ

An isostere is

✓
$NO_2^ - $ and ${O_3}$
B
$NO_2^ - $ and $PO_4^{3 - }$
C
$C{O_2},\,{N_2}O,\,NO_3^ - $
D
$ClO_4^ - $ and $OC{N^ - }$

✓

Answer

Correct option: A.

$NO_2^ - $ and ${O_3}$

a
(a) $NO_2^ - $ and ${O_3}$ are isostere. The number of atoms in these $( = 3)$ and number of electrons $(24)$ are same.

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$\begin{array}{*{20}{c}}
{C{H_3} - C{H_2} - C - COOH} \\
{\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}}
\end{array}$

is :