alleryWhich ion has the same bond order as the F2 molecule?
- N₂⁺
- O₂⁺
- O₂²⁻
- O₂⁻
Show answer and solution
Correct answer: C. O₂²⁻
The peroxide ion is isoelectronic with F2, and isoelectronic species share the same bond order of 1.
NEET UG Chemical Bonding and Molecular Structure — practice questions — page 4
Explore 126 free Chemical Bonding and Molecular Structure questions in NEET UG Chemistry. Open each question or exercise to read its content, reference answers and available explanation.
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Which ion has the same bond order as the F2 molecule?Read the answer and worked solution →Which species is isoelectronic with N2 and shares its bond order of 3?Read the answer and worked solution →How are the two oxygen-oxygen bond lengths in ozone best described?Read the answer and worked solution →How does a resonance hybrid's energy compare with its canonical forms?Read the answer and worked solution →Which statement about a molecule showing resonance is correct?Read the answer and worked solution →What is the O-C-O bond angle in the carbonate ion?Read the answer and worked solution →In which molecule is the shared electron pair attracted equally by both atoms?Read the answer and worked solution →Dipole moment is the product of which two quantities?Read the answer and worked solution →In the chemist's crossed-arrow dipole symbol, where does the arrowhead sit?Read the answer and worked solution →VSEPR theory is also named after which two chemists?Read the answer and worked solution →In which year did Gillespie and Nyholm refine the VSEPR idea into a theory?Read the answer and worked solution →How does VSEPR theory count a double bond on a central atom?Read the answer and worked solution →What is the steric number of the sulfur atom in SF4?Read the answer and worked solution →What molecular geometry does xenon tetrafluoride, XeF4, have?Read the answer and worked solution →Why is the H-O-H angle in water smaller than the tetrahedral 109.5°?Read the answer and worked solution →In AXE notation, ammonia, NH3, is which type of molecule?Read the answer and worked solution →Iodine heptafluoride, IF7, has which base geometry?Read the answer and worked solution →Which geometry do the five bonding pairs of PCl5 adopt?Read the answer and worked solution →Molecular Li2O is linear, not bent, mainly because its bonds are what?Read the answer and worked solution →What bond angle does the nitronium ion, NO₂⁺, have?Read the answer and worked solution →Who developed hybridisation theory in 1931 to explain methane?Read the answer and worked solution →What percentage s character does each sp3 hybrid orbital have?Read the answer and worked solution →In ethylene, the carbon-carbon pi bond comes from which overlap?Read the answer and worked solution →How many pi bonds join the two carbon atoms in ethyne, C2H2?Read the answer and worked solution →A molecule whose molecular orbitals are all doubly occupied is what?Read the answer and worked solution →In MO theory, bond order is half the difference between which counts?Read the answer and worked solution →Why does a stable He2 molecule not exist?Read the answer and worked solution →Which homonuclear diatomic molecule does MO theory predict cannot exist?Read the answer and worked solution →In the C2 molecule, what makes up the double bond?Read the answer and worked solution →O2 has 10 bonding and 6 antibonding electrons. What is its bond order?Read the answer and worked solution →
Worked practice questions
Which species is isoelectronic with N2 and shares its bond order of 3?
- O₂⁺
- NO⁺
- NO
- NO⁻
Show answer and solution
Correct answer: B. NO⁺
NO⁺ has 14 electrons like N2 and CO, so it also has a bond order of 3.
How are the two oxygen-oxygen bond lengths in ozone best described?
- One single and one double bond
- Both equal to a pure double bond
- Equal, between single and double
- Both equal to a pure single bond
Show answer and solution
Correct answer: C. Equal, between single and double
Measured O-O bonds in ozone are identical and intermediate in length, which is why ozone is shown as a resonance hybrid.
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