The number of species.... | JEE Main 2024 | Chemical Bonding

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The number of species from the following in which the central atom uses sp^3 hybrid orbitals in its bonding is _______. $\mathrm{NH}_3, \mathrm{SO}_2, \mathrm{SiO}_2, \mathrm{BeCl}_2, \mathrm{CO}_2, \mathrm{H}_2 \mathrm{O}, \mathrm{CH}_4, \mathrm{BF}_3$

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$\begin{aligned} & \mathrm{NH}_3 \rightarrow \mathrm{sp}^3 \\ & \mathrm{SO}_2 \rightarrow \mathrm{sp}^2 \\ & \mathrm{SiO}_2 \rightarrow \mathrm{sp}^3 \\ & \mathrm{BeCl}_2 \rightarrow \mathrm{sp} \\ & \mathrm{CO}_2 \rightarrow \mathrm{sp} \\ & \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{sp}^3 \\ & \mathrm{CH}_4 \rightarrow \mathrm{sp}^3 \\ & \mathrm{BF}_3 \rightarrow \mathrm{sp}^2\end{aligned}$

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