(A, C) $CO_{2}$ has a linear shape due to $sp$ hybridization and the absence of lone pairs on the central carbon atom.$HgCl_{2}$ ($sp$ hybridization,

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(A, C) $CO_{2}$ has a linear shape due to $sp$ hybridization and the absence of lone pairs on the central carbon atom.$HgCl_{2}$ ($sp$ hybridization, linear) and $C_{2}H_{2}$ ($sp$ hybridization, linear) both have a shape similar to $CO_{2}$.$SnCl_{2}$ and $NO_{2}$ have bent shapes due to the presence of a lone pair on the central atom.