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Hyperconjugation is more pronounced in...

Hyperconjugation is more pronounced in

A

2-methylpropene

B

but-2-ene

C

2, 3-dimethylbut-2-ene

D

2-methylbut-2-ene

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Hyperconjugation is defined as No bond resonance. The concept of hyperconjugation arose from the discovery of electron releasing pattern for alkyl groups. It involves sigma electrons of C-H bond. Greater the number of C-H bond ( alpha -hydrogen atom w.r.t. double bond) more will be hyperconjugative structures, more will be stability Heat of hydrogenation of alkene are affected by hyperconjugative effects. Which of the following is incorrect hyperconjugative structure?

KVPY PREVIOUS YEAR-MOCK TEST 5-EXERCISE
  1. [Co(NH3)4(NO2)92)]Cl exhibits .

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  2. The increasing order of the boiling points for the following compounds...

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  3. Hyperconjugation is more pronounced in

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  4. Ice and water are placed in a closed container at a pressure of 1 atm ...

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  5. The value of the 'spin only magnetic moment for one of the following c...

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  6. Here[Y] is a

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  7. Gradual addition of KI solution to Bi(NO3)(3) solution initially produ...

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  8. If the average life time of an excited state of hydrogen is of the ord...

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  9. Pure water freezes at 273 K and 1 bar. The addition of 34.5 g of ethan...

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  10. The major products obtained from the following sequence of reactions ...

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  11. The root mean square velocity of an ideal gas to constant pressure var...

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  12. During the process of digestion, the proteins present in food material...

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  13. To an acidic solution of an anion, a few drops of Kmno(4) solution are...

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  14. Select pair of compounds in which both have different hybridization bu...

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  15. Which one of the following compounds would have the highest heat of hy...

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  16. The rate constant, the activation energy and the Arrhenius parameter o...

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  17. For a 'C'M concentarted solution of a weak electrolyte A(x)B(y)alpha(d...

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  18. 3g of actived chacoal was added to 50mL of acetic acid solution (0.06N...

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  19. The standard state Gibbs free energies of formation of ) C(graphite an...

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  20. Li forms a body-centred cubic lattice. If the edge of the cube is 3.5 ...

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