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12 Dec 2019

Which of the following statements is not true about the structure of benzene? Please explain your answer

A. the structure rapidly transforms between two resonance contributors

B. the carbon-carbon bonds are all the same length

C. the structure is an average of two resonance contributors

D. the ring of six carbon atoms is planar

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13 Dec 2019
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Related questions

Which of the following statements regarding resonance contributors and resonance hybrids is correct?

A. The greater the predicted stability of a resonance contributor, the less it contributes to the resonance hybrid.

B. The resonance hybrid is more stable than the predicted stability of any of its resonance contributors because it is the sum of all stable resonance contributors.

C. The fewer nearly equivalent resonance contributors are in the structure, the greater the resonance energy.

D. The resonance hybrid will show all pi bonds and locations of all full charges.

I know the correct answer is B. I am having trouble understanding resonance could you please explain why A,C, and D is wrong and why B is correct.

Which of the following is true?

a) When you have a Lewis Structure that has resonance the structure that actually exists is the resonance hybrid, not any of the individual resonance structures.

b)Ionic bonds involve sharing electrons.

c)Metalic bonds involve the transfer of electrons.

d)Covalent bonds involved pooled electrons.

e)A carbon - carbon triple bond is longer than a carbon-carbon double bond.

<p>What are the resonance structures for [H2CNO2]-? Theproblem asks for the major and minor contributors. The answer keysays that there are two structures in which the only double bondswitches between the two NO bonds. (Both have the same energy-inother words no minor contributors)</p>
<p>My question is why can't there be a structure in whichthere's a single bond between all of the atoms? Also why can'tthere be a structure in which there's a double bond between the Cand N atoms? For both situations the overall charge would still be-1.&#160;</p>
<p>My other question is when drawing resonance structures thenumber of unpaired electrons should be the same but I've seenexamples (like for [CH3OCH2]+) in which there's two pairs ofunpaired electrons for the minor contributor but one pair for themajor contributor. Why is this? Is this rule only for structures ofthe same energy?&#160;</p>

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