JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism
Consider the following molecules/species:
\((x)\) tropone, \((y)\) acetone, \((z)\) acetate ion
The correct order of carbon – oxygen double bond length is:
- A \(x>y>z\)
- B \(y>z>x\)
- C \(z>x>y\)
- D \(x>z>y\)
Answer & Solution
Correct Answer
(C) \(z>x>y\)
Step-by-step Solution
Detailed explanation
In acetone \((y)\), the carbon-oxygen bond is a localized double bond with a bond order of approximately \(2\). In the acetate ion \((z)\), there are two equivalent resonance structures that delocalize the negative charge equally over both oxygen atoms. This results in a…
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