According to the VSEPR model, which one of the following molecules and ions will definitely have at least one 90° bond angle in it? (In each case, except water, the central atom is the first one in the formula.)

Question

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According to the VSEPR model, a molecule or ion with a trigonal bipyramidal electron geometry (such as PCl5) will have at least one 90° bond angle. The axial atoms are positioned at 90° angles to the equatorial atoms.

According to the VSEPR Model, Which One of the Following