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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ph163

Which of the following statements about shapes are correct?

A $XeF X_{5} X^{+}$ is square pyramidal.
B $XeO X_{3}$ is trigonal planar.
C $XeF X^{+}$ is linear.
D $XeF X_{2}$ is linear because its three lone pairs occupy equatorial positions.

Answer: A, C, D

XeF X_{5} X^{+}

has 5 bond pairs and 1 lone pair (square pyramidal); a diatomic ion is linear; XeF2 has three equatorial lone pairs and axial F atoms, hence linear. XeO3 has a lone pair and is pyramidal, not planar.

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