Question
What do you meant by hyperconjugation? Explain it and explain hyperconjugation in ethyl carbocation.
✓
Answer
In hyperconjugation, resonance of $\sigma$ bond exist. Hence it is also known as $\sigma$ bond resonance. In this delocalization of electrons occurs in $C - H$ bond of the alkyl group directly bonded to the atom of an unsaturated system or the atom having unshared orbital. Therefore, the $\sigma$ electrons of $C - H$ bond of alkyl group show partial conjugation with the adjacent unsaturated body or unshared orbital. It is a permanent effect.
In ethyl carbocation following structures are obtained by hyperconjugation :
In ethyl carbocation following structures are obtained by hyperconjugation :
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
More "2 Marks Questions" from PART - 2 CH - 8 Organic Chemistry: Some Basic Principles and Techniques→PART - 2 CH - 8 Organic Chemistry: Some Basic Principles and Techniques — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→
Similar questions
Element Aburns in nitrogen to give an ionic compound B. Compound B reacts with water to give C and D. A solution of C becomes milky on bubbling carbon dioxide. Identify A, B, C and D.
How many electrons are present in 16 g of $\mathrm{CH}_4$ ?
→It the concentration of glucose $\left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)$ in blood is $0.9 \mathrm{~g} \mathrm{~L}^{-1}$, what will be the molarity of glucose in blood?
→Arrange the following in decreasing order of stability:
Arrange the following ions in the order of increasing size:
$\mathrm{Be}^{2+}, \mathrm{Cl}^{-}, \mathrm{S}^{2-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}, \mathrm{Br}^{-}$. Also, give reason.
→$\mathrm{Be}^{2+}, \mathrm{Cl}^{-}, \mathrm{S}^{2-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}, \mathrm{Br}^{-}$. Also, give reason.
Indicate the $\sigma$ and $\pi$ bonds in the following molecules: $\mathrm{HCONHCH}_3$.
→Which one of the following elements exhibits +1 oxidation state as well?
AI, B, Ca, Ti, Be
AI, B, Ca, Ti, Be
- Explain the structure of $\text{CO}^{2-}_3$ ion in terms of resonance.
- Which out of $\mathrm{NH}_3$ and $\mathrm{NF}_3$ has higher dipole moment and why?
Define mole.
i. Why is Boyle's law obeyed by $\mathrm{N}_2, \mathrm{O}_2$ or $\mathrm{CO}_2$ only at low pressure and high temperature?
ii. Compare the rate of diffusion of HCl and $\mathrm{NH}_3$ (Atomic masses of $\mathrm{H}=1 \mathrm{u}, \mathrm{Cl}-35.7 \mathrm{u}, \mathrm{N}=14 \mathrm{u}$ ).
→ii. Compare the rate of diffusion of HCl and $\mathrm{NH}_3$ (Atomic masses of $\mathrm{H}=1 \mathrm{u}, \mathrm{Cl}-35.7 \mathrm{u}, \mathrm{N}=14 \mathrm{u}$ ).