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Decreasing order of stability for the fo...

Decreasing order of stability for the following radicals is :
`underset((I))CH_(2)=overset(*)CH,underset((II))overset(*)CH_(2)=CH_(2),`

A

`IIgtIIIgtIgtIV`

B

`IIIgtIIgtIVgtI`

C

`IIIgtIIgtIgtIV`

D

`IgtIVgtIIgtIII`

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Verified by Experts

The correct Answer is:
D
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The order of decreasing stability of the following cations is : CH_(3)underset((I))overset(+)CHCH_(3),CH_(3)underset((II))overset(+)CHOCH_(3),CH_(3)overset(+)CHunderset((III))COCH_(3)

The order of stability of the following carbocations underset((I))(CH_(2)=overset(+)(C)H-CH_(2)) , underset((II))(CH_(3)-CH_(2)-overset(+)(C )H_(2))

The decreasing order of the stability of the ions : underset((I))(CH_(3)=overset(+)(C)H-CH_(3))" "underset((II))(CH_(3)-overset(+)(C)H-OCH_(3))" "underset((III))(CH_(3)-overset(+)(C)H-COCH_(3)^(-))

The order of stability of the following carbocations: underset("I")(CH_(2)C=CH-overset(o+)CH_(2))" , "underset("II")(CH_(3)-CH_(2)-overset(o+)CH_(2))" , "underset("III")(C_(6)H_(5)-overset(o+)CH_(2))

The decreasing order of the stability of the ions underset((I))underset()(CH_(3)-overset(+)CH-CH_(3)), underset((II))underset()(CH_(3)-overset(+)CH-OCH_(3)), , underset((III))underset()(CH_(3)-overset(+)CH-COCH_(3)),

What si the correct order of decreasing stability of the following carbocations. underset(I.)(CH_(3)-overset(o+)(C)H-CH_(3))" "underset(II.)(CH_(3)-overset(o+)(C)H-OCH_(3)) underset(III.)(CH_(3)-overset(o+)(C)H-CH_(2)-OCH_(3))

HIMANSHU PANDEY-GENERAL ORGANIC CHEMISTRY-Subjective Type Problems
  1. Decreasing order of stability for the following radicals is : unders...

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  2. Which of the following systems are conjugated?

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  3. Draw all reasonable resonance structures for each species.

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  4. Draw all reasonable resonance structures for each species.

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  5. Determine the hybridization at the carbon atom indicated in each speci...

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  6. Explain each statement using resonance theory. (a) The indicated C-...

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  7. Rank the following dienes in order of increasin heat of hydrogenation.

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  8. How many pi electrons are contained in each molecule ?

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  9. Which compaounds are aromatic? For any compound that is not aromatic, ...

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  10. Which of the following heterocycles are aromatic?

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  11. Lebel each compound as aromatic, antiaromatic, or not aromatic. Assume...

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  12. Hydrocarbons A and B both possess a significant dipolel, even though e...

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  13. Rank the indicated C-C bonds in order of increasing bond length, and e...

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  14. The purine heterocycle occurs commonly in the structure of DNA. (a) ...

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  15. (a) How many pi electrons does C contion? (b) How many pi electrons ...

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  16. Draw additional resonance structure for each species.

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  17. The carbon-carbon bond lengths in naphthalene are not equal. Use a res...

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  18. Which compound in each pair is the stronger acid?

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  19. Treatment of indene with NaNH(2) forms its conjugate base in a Bronste...

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  20. Draw the conjugate bases of pyrrole and cyclopentadiene. Explain why t...

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