Which of the following pairs of ions are isoelectronic and isostructural ?

Question

Which of the following pairs of ions are isoelectronic and isostructural ? (A)  SO32- , NO-3  (B)  ClO3- , SO32-  (C) CO32- , SO32-  (D)  ClO-3 , CO32-

Tardigrade Admin · Accepted Answer

Number of electrons CO2-3 = 6 + 2 + 24 = 32 SO2-3 = 16 + 2 + 24 = 42 CIO-3 = 17 + 24 + 1 = 42 CO2-3 = 6 + 24 + 2 = 32 NO2-3 = 7 + 2 + 24 = 33 Hence, CIO-3 and SO2-3 are isoelectronic and are pyramidal in shape.

Q. Which of the following pairs of ions are isoelectronic and isostructural ?

$SO X_{3} X^{2 -}, NO X_{3}^{-}$

$ClO X_{3} X^{-}, SO X_{3} X^{2 -}$

$CO X_{3} X^{2 -}, SO X_{3} X^{2 -}$

$ClO X_{3}^{-}, CO X_{3} X^{2 -}$

Number of electrons
$CO X_{3}^{2 -} = 6 + 2 + 24 = 32$
$SO X_{3}^{2 -} = 16 + 2 + 24 = 42$
$CIO X_{3}^{-} = 17 + 24 + 1 = 42$
$CO X_{3}^{2 -} = 6 + 24 + 2 = 32$
$NO X_{3}^{2 -} = 7 + 2 + 24 = 33$
Hence, $CIO X_{3}^{-}$ and $SO X_{3}^{2 -}$ are isoelectronic and are pyramidal in shape.

Q. Which of the following pairs of ions are isoelectronic and isostructural ?

SOX3​X2−,NOX3−​

ClOX3​X−,SOX3​X2−

COX3​X2−,SOX3​X2−

ClOX3−​,COX3​X2−

Number of electrons COX32−​=6+2+24=32 SOX32−​=16+2+24=42 CIOX3−​=17+24+1=42 COX32−​=6+24+2=32 NOX32−​=7+2+24=33 Hence, CIOX3−​ and SOX32−​ are isoelectronic and are pyramidal in shape.

$SO X_{3} X^{2 -}, NO X_{3}^{-}$

$ClO X_{3} X^{-}, SO X_{3} X^{2 -}$

$CO X_{3} X^{2 -}, SO X_{3} X^{2 -}$

$ClO X_{3}^{-}, CO X_{3} X^{2 -}$

Number of electrons
$CO X_{3}^{2 -} = 6 + 2 + 24 = 32$
$SO X_{3}^{2 -} = 16 + 2 + 24 = 42$
$CIO X_{3}^{-} = 17 + 24 + 1 = 42$
$CO X_{3}^{2 -} = 6 + 24 + 2 = 32$
$NO X_{3}^{2 -} = 7 + 2 + 24 = 33$
Hence, $CIO X_{3}^{-}$ and $SO X_{3}^{2 -}$ are isoelectronic and are pyramidal in shape.