Species with unequal bond lengths (SF4 among BF4-, SiF4, XeF4, SF4)

1. A.
   ${XeF}_{4}$
2. B.
   ${SiF}_{4}$
3. C.
   $BF_{4}^{-}$
4. D.
   ${SF}_{4}$

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1. A.
   ${PF}_{5}$
2. B.
   ${XeF}_{4}$
3. C.
   ${SF}_{4}$
4. D.
   ${XeF}_{2}$

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1. A.
   Both Statement (I) and Statement (II) are false
2. B.
   Both Statement (I) and Statement (II) are true
3. C.
   Statement (I) is true but Statement (II) is false
4. D.
   Statement (I) is false but Statement (II) is true

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