Question at position 15 Predict the actual bond angles in N2F+ using the VSEPR theory. 109.5°less than 120° less than 109.5° 120° 90° 180°

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Question restatement: Determine the actual bond angles in N2F+ as predicted by VSEPR theory, choosing from: 109.5°, less than 120°, less than 109.5°, 120°, 90°, 180°.

Option analysis:
- 109.5°: This angle is typical of a tetrahedral arrangement with four electron domains around a central atom. In N2F+, the central atom environment does not feature four regions of electron density; it has only two bonding partners (N and F) and no geometry requiring a tetrahedral arrangement. Therefore, 109.5° is not appropriate.
- less than 120°: Angles smaller than 120° often arise in trigonal planar geometries with one or more lone pairs causing distortion. Here, the involved central atom does not adopt a trigonal planar setup with a lone-pair distortion; the simplest two-domain case is more consistent with linear geometry, so this option is unlikely.
- less than 109.5°: This would indicate a geometry even more compressed than a typical tetrahedral scenario, which does not fit a two-domain (bonding) situation around the central atom. It implies some unusual strain or lone-pair effects that aren’t central to this diatomic/triatomic cation as described.
- 120°: A 120° angle corresponds to a trigonal planar arrangement with three regions of electron density around a central atom. N2F+ in this description does not have three substituents or a planar three-area electron-domain geometry; it is best described with two bonds, not three.
- 90°: A 90° angle is characteristic of octahedral or certain square-planar contexts, i.e., when there are more electron domains around the central atom than in a simple two-bond case. This does not reflect the typical VSEPR scenario for N2F+ with only two bonded pairs.
- 180°: The two-bond, two-domain arrangement around the central atom leads to a linear electron-domain geometry, yielding a bond angle of approximately 180°. In VSEPR terms, with only two bonding regions and no lone-pair–induced distortion, the most reasonable prediction is a linear N–N–F framework, giving 180°.

In summary, other options imply geometries with more electron domains or different distortions (tetrahedral, trigonal planar, octahedral contexts) that do not apply to the N2F+ core description, whereas a two-domain, linear arrangement directly supports a 180° angle.

Question at position 15 Predict the actual bond angles in N2F+ using the VSEPR theory. 109.5°less than 120° less than 109.5° 120° 90° 180°

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