The pairs among A = [SO_3^{2-}, CO_3^{2-}], B | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) To determine if the species have similar Lewis dot structures, we analyze their valence electrons and geometry:$A: SO_3^{2-}$ has $26$ valence ele

Vedclass · Accepted Answer

$A$ and $E$

Vedclass · Answer

(B) To determine if the species have similar Lewis dot structures, we analyze their valence electrons and geometry:$A: SO_3^{2-}$ has $26$ valence electrons and a trigonal pyramidal geometry. $CO_3^{2-}$ has $24$ valence electrons and a trigonal planar geometry. These are not similar.$B: O_2^{2-}$ has $14$ valence electrons $(:O-O:)$ and $F_2$ has $14$ valence electrons $(:F-F:)$. These are isoelectronic and have similar structures.$C: CN^-$ has $10$ valence electrons $([:C \equiv N:]^-)$ and $CO$ has $10$ valence electrons $(:C \equiv O:)$. These are isoelectronic and have similar structures.$D: NH_3$ has $8$ valence electrons and a trigonal pyramidal geometry. $H_3O^+$ has $8$ valence electrons and a trigonal pyramidal geometry. These are similar.$E: MnO_4^{2-}$ and $CrO_4^{2-}$ are both $d^0$ transition metal oxoanions with a tetrahedral geometry. These are similar.Therefore, only pair $A$ does not have similar structures.

Column $I$ (Molecules)	Column $II$ (Number of lone pairs on central atom)
$A. \ NH_3$	$1. \ \text{Two}$
$B. \ H_2O$	$2. \ \text{Three}$
$C. \ XeF_2$	$3. \ \text{Zero}$
$D. \ CH_4$	$4. \ \text{Four}$
	$5. \ \text{One}$

The pairs among $A = [SO_3^{2-}, CO_3^{2-}]$, $B = [O_2^{2-}, F_2]$, $C = [CN^-, CO]$, $D = [NH_3, H_3O^+]$ and $E = [MnO_4^{2-}, CrO_4^{2-}]$ that do not have similar Lewis dot structures are:

Similar Questions

Which of the following molecules or ions possesses electrovalent,covalent,and coordinate bonds at the same time?

The number of $\sigma$ and $\pi$ bonds in peroxodisulphuric acid are,respectively

Which of the following pairs of molecules have almost identical bond dissociation energy?

Which of the following species among $BF_3, SnCl_2, SnCl_4$ act as Lewis acids?

Vedclass Test Series

Exam Paper Generator

Online Exam Module