Question at position 28 A nitrogen-oxygen bond in NO2+ has __________bond order, _________bond length, and ____________bond energy than a nitrogen-oxygen bond in NO2–. a higher, a shorter, a greater a lower, a longer, a greater the same, the same, the same a higher, a longer, greater a lower, a longer, a smallerSingle choice
A
a higher, a shorter, a greater
B
a lower, a longer, a greater
C
the same, the same, the same
D
a higher, a longer, greater
E
a lower, a longer, a smaller

Question

Question at position 28 A nitrogen-oxygen bond in NO2+ has ______bond order, _bond length, and ________bond energy than a nitrogen-oxygen bond in NO2–. a higher, a shorter, a greater a lower, a longer, a greater the same, the same, the same a higher, a longer, greater a lower, a longer, a smallerSingle choice

A

a higher, a shorter, a greater

B

a lower, a longer, a greater

C

the same, the same, the same

D

a higher, a longer, greater

E

a lower, a longer, a smaller

BlackTom AI · Accepted Answer

First, let's restate the core idea: we are comparing a nitrogen–oxygen bond in NO2+ to the same bond in NO2–, focusing on bond order, bond length, and bond energy.
Option 1: a higher, a shorter, a greater. This matches the expectation that removing an electron to form NO2+ increases bond order, shortens the bond, and strengthens it (higher bond energy). The cationic form often has less antibonding electron density, leading to a stronger, shorter bond.
Option 2: a lower, a longer, a greater. If NO2+ had a lower bond order, it would imply a weaker, longer bond, which contradicts how removing an electron from a bonding/antibonding framework typically affects these parameters when going from an anion to a cation in this context.
Option 3: the same, the same, the same. It is unlikely that removing an electron leaves all three properties exactly unchanged; electron count changes influence bond order, length, and energy in a coordinated way.
Option 4: a higher, a longer, greater. Higher bond order would usually correspond to shorter length, not longer; thus this option mixes correct intuition about bond order with incorrect expectation for length.
Option 5: a lower, a longer, a smaller. This set describes decreased bond order, longer bond length, and reduced bond energy, which would be expected if NO2+ had more antibonding character relative to NO2–, contradicting the typical effect of electron removal on these parameters in this system.
In summary, the most consistent description with general bonding principles for NO2+ versus NO2– is that the bond order increases, the bond length decreases, and the bond energy increases when moving from the anionic to the cationic form, which aligns with Option 1.

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