JEE MAIN - Chemistry (2023 - 6th April Evening Shift - No. 16)
The number of species having a square planar shape from the following is __________.
$$\mathrm{XeF}_{4}, \mathrm{SF}_{4}, \mathrm{SiF}_{4}, \mathrm{BF}_{4}^{-}, \mathrm{BrF}_{4}^{-},\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+},\left[\mathrm{FeCl}_{4}\right]^{2-},\left[\mathrm{PtCl}_{4}\right]^{2-}$$
Answer
4
Explanation
$\mathrm{XeF}_4 \rightarrow$ Square planar
$\mathrm{SF}_4 \rightarrow$ See saw
$\mathrm{SiF}_4 \rightarrow$ Tetrahedral
$\mathrm{BF}_4^{-} \rightarrow$ Tetrahedral
$\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+} \rightarrow$ Square planar
$\left[\mathrm{FeCl}_4\right]^{2-} \rightarrow$ Tetrahedral
$\left[\mathrm{PtCl}_4\right]^{2-} \rightarrow$ Square planar
$\mathrm{BrF}_4^{-} \rightarrow$ Square planar
So, 4 square planer shape compounds are present.
$\mathrm{SF}_4 \rightarrow$ See saw
$\mathrm{SiF}_4 \rightarrow$ Tetrahedral
$\mathrm{BF}_4^{-} \rightarrow$ Tetrahedral
$\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+} \rightarrow$ Square planar
$\left[\mathrm{FeCl}_4\right]^{2-} \rightarrow$ Tetrahedral
$\left[\mathrm{PtCl}_4\right]^{2-} \rightarrow$ Square planar
$\mathrm{BrF}_4^{-} \rightarrow$ Square planar
So, 4 square planer shape compounds are present.
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