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(C) To determine the geometry,we analyze the structure of each species:$1$. $SO_3^{2-}$ (Sulfite ion): The central $S$ atom has $3$ bond pairs and $1$

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(C) To determine the geometry,we analyze the structure of each species:$1$. $SO_3^{2-}$ (Sulfite ion): The central $S$ atom has $3$ bond pairs and $1$ lone pair. According to $VSEPR$ theory,this results in a trigonal pyramidal geometry.$2$. $SO_4^{2-}$ (Sulfate ion): The central $S$ atom has $4$ bond pairs and $0$ lone pairs,resulting in a tetrahedral geometry.$3$. $S_2O_3^{2-}$ (Thiosulfate ion): The central $S$ atom is bonded to $3$ oxygen atoms and $1$ sulfur atom,with $0$ lone pairs,resulting in a tetrahedral geometry.$4$. $S_2O_7^{2-}$ (Pyrosulfate ion): Each central $S$ atom is bonded to $4$ oxygen atoms with $0$ lone pairs,resulting in a tetrahedral geometry around each sulfur atom.Thus,only $SO_3^{2-}$ has a pyramidal geometry. The total number of such species is $1$.

List-$I$	List-$II$
$(1)$ ${H_3O^+}$	$(A)$ Linear
$(2)$ ${HC \equiv CH}$	$(B)$ Angular
$(3)$ ${ClO_2^-}$	$(C)$ Tetrahedral
$(4)$ ${NH_4^+}$	$(D)$ Trigonal bipyramidal
	$(E)$ Pyramidal

List-$I$	List-$II$
$A. ICl$	$i. \text{Linear}$

$B. ICl_3$	$ii. \text{T-Shape}$
$C. ClF_5$	$iii. \text{Square pyramidal}$
$D. IF_7$	$iv. \text{Pentagonal bipyramidal}$

The number of species from the following that have pyramidal geometry around the central atom is . . . . . . . . .
$S_2O_3^{2-}, SO_4^{2-}, SO_3^{2-}, S_2O_7^{2-}$

Similar Questions

Molecular bromine on reaction with three moles of molecular fluorine produces an interhalogen compound. The total number of lone pairs at the central halogen atom is

The shape of $XeF^{+}_3$ is

Match the species given in List-$I$ with their correct geometric shapes given in List-$II$.

List-$I$ List-$II$

$(1)$ ${H_3O^+}$ $(A)$ Linear

$(2)$ ${HC \equiv CH}$ $(B)$ Angular

$(3)$ ${ClO_2^-}$ $(C)$ Tetrahedral

$(4)$ ${NH_4^+}$ $(D)$ Trigonal bipyramidal

$(E)$ Pyramidal

In the reaction given below,what are the geometries of $BCl_3$ and $X$ respectively?
$BCl_3 + NH_3 \rightarrow X$

Match List-$I$ with List-$II$.
List-$I$ List-$II$
$A. ICl$ $i. \text{Linear}$
$B. ICl_3$ $ii. \text{T-Shape}$
$C. ClF_5$ $iii. \text{Square pyramidal}$
$D. IF_7$ $iv. \text{Pentagonal bipyramidal}$

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The number of species from the following that have pyramidal geometry around the central atom is . . . . . . . . . $S_2O_3^{2-}, SO_4^{2-}, SO_3^{2-}, S_2O_7^{2-}$