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Class 12 Exam  >  Class 12 Questions  >  In the anion HCOO- the two carbon-oxygen bond... Start Learning for Free
In the anion HCOO-  the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ?        [AIEEE-2003]
  • a)
    The anion HCOO- has two resonating structures
  • b)
    The anion is obtained by removal of a proton from the acid molecule
  • c)
    Electronic orbitals of carbon atom are hybridised
  • d)
    The C=O bond is weaker than the C - O bond
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
In the anion HCOO- the two carbon-oxygen bonds are found to be of equa...
Through resonance both resonating structures are equivalent. That is why two C−0 bond lengths are found to be equal.
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In the anion HCOO- the two carbon-oxygen bonds are found to be of equa...
InHCOO-iontwo carbon-oxygen bonds are found to be of equal length because this ion is stabilized by resonance and in resonance both C-O bonds have partial double bond character.
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In the anion HCOO- the two carbon-oxygen bonds are found to be of equa...
Resonance in the Anion HCOO-
Resonance is the phenomenon where a molecule can have multiple Lewis structures that contribute to its overall structure. In the case of the anion HCOO-, the two carbon-oxygen bonds are found to be of equal length due to the presence of resonance.

Explanation:
- The anion HCOO- has two resonating structures: In the resonance hybrid of HCOO-, both oxygen atoms can have a partial negative charge. This allows for the delocalization of electrons between the two oxygen atoms, leading to equal bond lengths between the carbon and oxygen atoms.
- Resonance stabilization: The resonance structures of HCOO- contribute to its overall stability, making it a more favorable arrangement compared to having unequal bond lengths.
- Equal sharing of electrons: Due to resonance, the electrons in the C-O bonds are delocalized, resulting in equal sharing between the carbon and oxygen atoms. This equal sharing leads to equal bond lengths.
In conclusion, the reason for the two carbon-oxygen bonds in the anion HCOO- being of equal length is due to the presence of resonance, which allows for the delocalization of electrons and equal sharing between the atoms involved.
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In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ? [AIEEE-2003]a)The anion HCOO- has two resonating structuresb)The anion is obtained by removal of a proton from the acid moleculec)Electronic orbitals of carbon atom are hybridisedd)The C=O bond is weaker than the C - O bondCorrect answer is option 'A'. Can you explain this answer?
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In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ? [AIEEE-2003]a)The anion HCOO- has two resonating structuresb)The anion is obtained by removal of a proton from the acid moleculec)Electronic orbitals of carbon atom are hybridisedd)The C=O bond is weaker than the C - O bondCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ? [AIEEE-2003]a)The anion HCOO- has two resonating structuresb)The anion is obtained by removal of a proton from the acid moleculec)Electronic orbitals of carbon atom are hybridisedd)The C=O bond is weaker than the C - O bondCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ? [AIEEE-2003]a)The anion HCOO- has two resonating structuresb)The anion is obtained by removal of a proton from the acid moleculec)Electronic orbitals of carbon atom are hybridisedd)The C=O bond is weaker than the C - O bondCorrect answer is option 'A'. Can you explain this answer?.
Solutions for In the anion HCOO- the two carbon-oxygen bonds are found to be of equal length. What is the reason for it ? [AIEEE-2003]a)The anion HCOO- has two resonating structuresb)The anion is obtained by removal of a proton from the acid moleculec)Electronic orbitals of carbon atom are hybridisedd)The C=O bond is weaker than the C - O bondCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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