Which of the following statements is true?

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The state of hybridization of boron and oxygen atoms in boric acid are sp³ and sp² respectively.

${NH}_{3}$ and $[{BF}_{4}^{-}]$ have same bond angles of 109°28'.

${SF}_{6}$ and ${PF}_{6}^{-}$ both have undistorted octahedral structures

The hybridization of Pin P₄molecules is the same as in S in SO₃ molecule.

answer is C.

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Detailed Solution

In ${PF}_{6}^{-}$ , the phosphorus atom is surrounded by six fluorine atoms, each of which contributes six electrons to the valence shell. This results in a total of 11 electrons in the valence shell, plus one negative charge on the phosphorus atom. Therefore, with a total of 12 electrons, VSEPR ${PF}_{6}^{-}$ reveals undistorted octahedral structures.
Additionally, octahedral structures in ${SF}_{6}$ are undistorted.

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