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The electromeric effect is...

The electromeric effect is

A

Permanent effect

B

Temporary effect

C

%-electrons transfer-in this effect

D

Both (2) & (3)

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Which of the following compounds does not show electromeric effect

Which of the following does not show electromeric effect ?

which of the following undergo electromeric effect ?

Assertion : Electromeric effect is brought into play only at the requirement of the reagent. Reason : It is a temporary effect in which bond pair is shifted to one of the constituent atoms.

II. Read the following passage and answer questions 6-10 that follow : During organic reactions, a covalent bond between two carbon atoms or carbon atom and some other atom is broken and a new bond is formed. The fission of bonds can be homolytic or heterolytic forming free radicals, carbocations carbanions, carbenes, etc. This also depends upon the displacement, of electron in a bond and is governed by inductive effect, electromeric effect, reasonance and hyperconjugation. Which of the two CH_2 = CH^(-) or HC -= C^(-) is a better nucleophile?

II. Read the following passage and answer questions 6-10 that follow : During organic reactions, a covalent bond between two carbon atoms or carbon atom and some other atom is broken and a new bond is formed. The fission of bonds can be homolytic or heterolytic forming free radicals, carbocations carbanions, carbenes, etc. This also depends upon the displacement, of electron in a bond and is governed by inductive effect, electromeric effect, reasonance and hyperconjugation. Complete the reaction : CH_2 N_2 overset("Light") (to) and name the species formed.

II. Read the following passage and answer questions 6-10 that follow : During organic reactions, a covalent bond between two carbon atoms or carbon atom and some other atom is broken and a new bond is formed. The fission of bonds can be homolytic or heterolytic forming free radicals, carbocations carbanions, carbenes, etc. This also depends upon the displacement, of electron in a bond and is governed by inductive effect, electromeric effect, reasonance and hyperconjugation. Which of the two Ph_3 C^(+) or (CH_2)_3 C^(+) is more stable and why?

II. Read the following passage and answer questions 6-10 that follow : During organic reactions, a covalent bond between two carbon atoms or carbon atom and some other atom is broken and a new bond is formed. The fission of bonds can be homolytic or heterolytic forming free radicals, carbocations carbanions, carbenes, etc. This also depends upon the displacement, of electron in a bond and is governed by inductive effect, electromeric effect, reasonance and hyperconjugation. Which of the following is most stable and why? CH_(3)^(-) , overset(-) CH_2 CI, overset(-) CH CI_2, ""^(-) CCI_3

II. Read the following passage and answer questions 6-10 that follow : During organic reactions, a covalent bond between two carbon atoms or carbon atom and some other atom is broken and a new bond is formed. The fission of bonds can be homolytic or heterolytic forming free radicals, carbocations carbanions, carbenes, etc. This also depends upon the displacement, of electron in a bond and is governed by inductive effect, electromeric effect, reasonance and hyperconjugation. Do (CH_3)_ 3 C^(+) and ( CH_3 )_3 C^(-) have same structure? Explain.

AAKASH INSTITUTE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -Assignment(SECTION-A)
  1. The nucleophile is not

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  2. The most stable carbocation is

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  3. The electromeric effect is

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  4. CH(3)CH=CH-CH(3) + Br(2) to CH(3)-underset(Br)underset(|)(C )H-underse...

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  5. The correct statement for alpha-elimination is

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  6. In compound The hybridization of C (1) to (7) are

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  7. The hybridization and Shape of overset((-))(CH(3)) is respectively

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  8. Number of C atoms which present linearly in vinyl acetylene is.

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  9. A mixture containing urea and napthalene can be separated by

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  10. Principle of crystallization method depends on

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  11. Chloroform and aniline can be purified by

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  12. The principle involved in gas liquid chromatography (GLC) is

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  13. Steam distillation is applied for the separation of those compounds wh...

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  14. The process of differential extraction is based upon

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  15. Glycerol decomposes at its boiling point, the purification of glycerol...

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  16. The Na metal is used in "Lassaigne’s test" is due to

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  17. Which of the following compound will give blood red colour while doing...

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  18. The violet-red colour in the Lassaigne’s test of sulphur is due to ...

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  19. The function of boiling the sodium extract with concentrated nitric ac...

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  20. A mixture of acetone and methanol can be separated by

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