Subjective Type

Give the order of stabilities of the following : a. $$ Ph_3 \dot {C} $$ b. $$ Ph \dot{ C}H_2 $$ c. $$ Me_3 \dot {C} $$ d. $$ \dot {C_2}H_5 $$ e. $$ \dot {CH_3} $$

Solution

Ph3
˙
C
>Ph
˙
C
H2>Me3
˙
C
>
˙
C2
H5>
˙
CH3
(a>b>c>d>e)

Aromatic radicals are more stable than aliphatic radicals, due to the presence of resonance.
For aliphatic radicals, 3o>2o>1o, on account of +I effect of alkyl groups.

SIMILAR QUESTIONS

Organic Chemistry

Select the correct statement about carbonium ion, $$\overset{\oplus}{C}H_5$$

Organic Chemistry

Arrange the carbanions, $$(\mathrm{C}\mathrm{H}_3)_{3}\overline{\mathrm{C}},\overline{\mathrm{C}}\mathrm{C}l_{3},(\mathrm{C}\mathrm{H}_3)_{2}\overline{\mathrm{C}}\mathrm{H},\ \mathrm{C}{}_{6}\mathrm{H}_{5}\overline{\mathrm{C}}\mathrm{H}_{2}$$ , in order of their decreasing stability:

Organic Chemistry

Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion?

Organic Chemistry

The false statements among the following are: I. A primary carbocation is less stable than a tertiary carbocation. II. A cyclopropyl methyl carbocation is less stable than allyl carbocation. III. A tertiary free radical is more stable than a primary free radical. IV. Isopropyl carbanion is more stable than ethyl carbanion.

Organic Chemistry

Which of the following statement is not true about carbanions?

Organic Chemistry

Which of the following is cabanion expected to be most stable?

Organic Chemistry

The order of decreasing stability of the following carbanion is: (i) $${ (C{ H }_{ 3 }) }_{ 3 }C^- $$ (ii) $$C{ { H }_{ 3 } } ^-$$ (iii) $${ C{ H }_{ 3 } }C { }{ { H }_{ 2 } } ^-$$ (iv) $${ (C{ H }_{ 3 }) }_{ 2 }C{ H } ^-$$

Organic Chemistry

Arrange the following carbanions in order of their decreasing stability. (I) $$H_3C-C\equiv C^-$$ (II) $$ H-C \equiv C^-$$ (III) $$ H_3C-CH^-_2$$

Organic Chemistry

Give the order of stabilities of the following : b. Ph3C⊖ c.Me2CH⊖ d.C⊖H3 e.C ⊖ 2 H5 f.Me3C⊖

Contact Details