Which of the following have linear structure? | vedclass

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(B) To determine the linear structure,we analyze the hybridization and lone pairs on the central atom:$I. SnCl_2$: $Sn$ has $4$ valence electrons. It

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$II, IV, V$

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(B) To determine the linear structure,we analyze the hybridization and lone pairs on the central atom:$I. SnCl_2$: $Sn$ has $4$ valence electrons. It forms $2$ sigma bonds and has $1$ lone pair. Due to the lone pair,it has a bent ($V$-shaped) structure.$II. BeF_2$: $Be$ has $2$ valence electrons,both involved in bonding with $F$ atoms. It has no lone pair and is $sp$ hybridized,resulting in a linear structure.$III. SO_2$: $S$ has $6$ valence electrons. It forms $2$ sigma bonds and $2$ pi bonds with $O$ atoms,leaving $1$ lone pair on $S$. This results in a bent structure.$IV. NO_2^+$: The nitronium ion $(NO_2^+)$ has $N$ as the central atom with $4$ valence electrons (after losing one). It forms $2$ double bonds with $O$ atoms. It has no lone pair and is $sp$ hybridized,resulting in a linear structure.$V. C_2H_2$: Each $C$ atom is $sp$ hybridized,forming $1$ sigma bond with $H$ and $1$ sigma bond with the other $C$ atom,plus $2$ pi bonds. The molecule is linear.Thus,$II, IV,$ and $V$ have linear structures. The correct option is $(b)$.

Which of the following have linear structure?

$I. SnCl_2$ $II. BeF_2$

$III. SO_2$ $IV. NO_2^+$

$V. C_2H_2$

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Which of the following have linear structure? $I. SnCl_2$ $II. BeF_2$ $III. SO_2$ $IV. NO_2^+$ $V. C_2H_2$