KCET · Chemistry · General Organic Chemistry
Resonance effect is not observed in
- A \( \mathrm{CH}_{2}=\mathrm{CH}-\mathrm{Cl} \)
- B \( \mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{NH}_{2} \)
- C \( \mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}_{2} \)
- D \( \mathrm{CH}_{2}=\mathrm{CH}-\mathrm{C}=\mathrm{N} \)
Answer & Solution
Correct Answer
(B) \( \mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{NH}_{2} \)
Step-by-step Solution
Detailed explanation
(B)
In \( \mathrm{H}_{2} \mathrm{C}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{NH}_{2} \), the lone pair of \( \mathrm{N} \) is not on adjacent carbon with \( \pi \) bond. (Not in conjugatedsystem.)
In \( \mathrm{H}_{2} \mathrm{C}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{NH}_{2} \), the lone pair of \( \mathrm{N} \) is not on adjacent carbon with \( \pi \) bond. (Not in conjugatedsystem.)
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