Question at position 18 Predict the actual bond angles in N2F+ using the VSEPR theory. less than 109.5° 120° 90° 109.5°180° less than 120°Single choice
A
less than 109.5°
B
120°
C
90°
D
109.5°
E
180°
F
less than 120°

Question

Question at position 18 Predict the actual bond angles in N2F+ using the VSEPR theory. less than 109.5° 120° 90° 109.5°180° less than 120°

BlackTom AI · Accepted Answer

To approach this question, first we restate the scenario: predicting bond angles in N2F+ using VSEPR theory and selecting from the given angle options.
Option 1: less than 109.5°. This would correspond to a highly distorted tetrahedral environment or strong lone-pair repulsion beyond what is typical for a trigonal arrangement; in N2F+ the local geometry around involved atoms is not expected to be tetrahedral, so this is unlikely.
Option 2: 120°. This is the ideal angle for a perfect trigonal planar arrangement (three regions of electron density around a central atom). However, in a realistic molecule with lone pairs present, the observed angle is typically reduced from 120°, so this exact value would be too large if lone-pair effects are significant.
Option 3: 90°. A 90° angle is characteristic of octahedral or certain square-planar/other highly constrained environments. It does not describe a simple N–N–F fragment in a small cation like N2F+, so this is not the expected angle.
Option 4: 109.5°. This is the ideal tetrahedral angle. If the central atom had four electron domains arranged tetrahedrally, you would expect ~109.5°. But in N2F+, the electron-domain geometry is not tetrahedral around the relevant center due to having fewer than four substituents and the presence of lone pairs, so this exact angle is unlikely.
Option 5: 180°. This corresponds to a perfectly linear arrangement. While some diatomic or simple fragments can be linear, the presence of a fluorine substituent and the overall electron-pair distribution in N2F+ makes a strictly linear N–N–F interior angle unlikely.
Option 6: less than 120°. This option aligns with the idea that a bond angle deviates downward from the ideal trigonal planar value (120°) due to lone-pair repulsion and limited central-atom substitution, yielding a bent geometry with angles smaller than 120° but not as small as 109.5° in most simple cases.
In this context, VSEPR reasoning points to a scenario where the bond angle is constrained by two bonding regions plus at least one lone pair around the relevant center, producing a bond angle smaller than 120° but not necessarily as small as 109.5°; hence a result like "less than 120°" is the most consistent choice. It accounts for the typical reduction from 120° due to lone-pair effects and steric interactions without forcing it to the tetrahedral or linear extremes.
Overall, options asserting exact 120°, 90°, 109.5°, or 180° are not consistent with the expected electron-domain geometry for N2F+ under VSEPR, whereas the statement "less than 120°" captures the common downward deviation from 120° due to lone-pair repulsion and the specific bonding situation. Therefore, the reasoning supports selecting that the actual bond angles are less than 120°.

Question at position 18 Predict the actual bond angles in N2F+ using the VSEPR theory. less than 109.5° 120° 90° 109.5°180° less than 120°Single choice

Similar Questions

Using the VSEPR model, what are the respective electron-domain geometries of carbon dioxide (CO2) and ammonia (NH3)? I: CO2 [ Select ] trigonal bipyramidal octahedral trigonal planar tetrahedral linear II: NH3 [ Select ] tetrahedral trigonal planar octahedral linear trigonal bipyramidal 13A

The electron domain geometry of IF4+ is __________.

Match the following descriptors about a central atom in a molecule to its shape as described by VESPR 1: 3 Connected Atoms, No Lone Pairs 2: 3 Connected Atoms, One Lone Pair 3: 4 Connected Atoms , No Lone Pairs

Question at position 20 Which of the listed compounds is part of the tetrahedral electron group arrangement? SO2 AsF3 CO2 ICl4–

Question at position 26 Use VSEPR theory to predict the molecular shape of SOCl2? Trigonal pyramidalSquare pyramidal Square planar Tetrahedral Bent

Question at position 22 Which species has the smallest bond angle? ClO3– ClO2– ClO2+ ClO4–

Question at position 9 Predict the actual bond angles in N2F+ using the VSEPR theory. less than 109.5° 90° 120° 180° less than 120° 109.5°

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler