The increasing order of stability of the following free radicals isA. `(CH_(3))_(2)overset(*)(C)H lt (CH_(3))_(3)overset(*)(C) lt (C_(6)H_(5))_(2) overset(*)(C)H lt (C_(6)H_(5))_(3)overset(*)(C)`B. `(C_(6)H_(5))_(3)overset(*)(C) lt (C_(6)H_(5))_(2)overset(*)(C)H lt (CH_(3))_(3)overset(*)(C) lt (CH_(3))_(2)overset(*)(C)H`C. `(C_(6)H_(5))_(2)overset(*)(C)H lt (C_(6)H_(5))_(3)overset(*)(C) lt (CH_(3))_(3)overset(*)(C) lt (CH_(3))_(2)overset(*)(C)H`D. `(CH_(3))_(2)overset(*)(C)H lt (CH_(3))_(3)overset(*)(C) lt (C_(6)H_(5))_(3)overset(*)(C) lt (C_(6)H_(5))_(2)overset(*)(C)H`

The increasing order of stability of the following free radicals isA.

1.	The increasing order of stability of the following free radicals isA. `(CH_(3))_(2)overset()(C)H lt (CH_(3))_(3)overset()(C) lt (C_(6)H_(5))_(2) overset()(C)H lt (C_(6)H_(5))_(3)overset()(C)`B. `(C_(6)H_(5))_(3)overset()(C) lt (C_(6)H_(5))_(2)overset()(C)H lt (CH_(3))_(3)overset()(C) lt (CH_(3))_(2)overset()(C)H`C. `(C_(6)H_(5))_(2)overset()(C)H lt (C_(6)H_(5))_(3)overset()(C) lt (CH_(3))_(3)overset()(C) lt (CH_(3))_(2)overset()(C)H`D. `(CH_(3))_(2)overset()(C)H lt (CH_(3))_(3)overset()(C) lt (C_(6)H_(5))_(3)overset()(C) lt (C_(6)H_(5))_(2)overset()(C)H`
Answer» Correct Answer - A More the number of phenyl groups, greater is the stabilization due to resonance, therefore, `(C_(6)H_(5))_(3)C` is more stable than `(C_(6)H_(5))_(2)overset()(C)H`. Further, more the number of methyl groups, more is the number of hyperconjugation structures and hence more stable is the radical, i.e, `(CH_(3))_(3)overset()(C)` is more stable than `(CH_(3))_(2)overset(*)(C)H`. Thus, option (a) is correct.

Discussion

No Comment Found

Related InterviewSolutions

Which of the following statements concerning `3,4`-dibromo-`1`-pentane and `3,5`-dibromo-`2`-pentane are correct? (I) They have same molecular formula `C_(5)H_(8)Br_(2)` (II) They are positional isomers. (III) They have similar chemical properties.A. `I` and `III`B. `I` and `II`C. `II` and `III`D. `I,II` and `III`
What is the correct relationship between the following compounds? `CH_(3)-CH_(2)-underset(CH_(3))underset(|)CH-CH_(2)-CH_(3)` `CH_(3)-CH_(2)-CH_(2)-CH_(2)-underset(CH_(3))underset(|)CH_(2)`A. Chain isomersB. Position isomersC. Functional isomersD. Identical
Consider the following nucleophiles `F^(-),Cl^(-),Br^(-),I^(-)` The correct decreasing order of nucleophilicity is,A. `F^(-)gtCl^(-)gtBr^(-)gtI^(-)`B. `I^(-)gtBr^(-)gtCl^(-)gtF^(-)`C. `Cl^(-)gtF^(-)gtBr^(-)gtI^(-)`D. `Cl^(-)gtBr^(-)gtI^(-)gtF^(-)`
An aromatic compound having `C_(7)H_(8)O` as the molecular formula has.................isomers.
Which of the following statements regarding ethanoic acid and methyl methanoate are correct? (I) They are functional group isomers with molecular formula `C_(2)H_(4)O_(2)`. (II) They belong to different homologous series (III) They have different chemical properties.A. `I` and `II`B. `I,II` and `III`C. `II` and `III`D. `I` and `III`
Which of the following statements are correct? (I) A pair of positional isomers differs in the position of the same functional group. (II) A pair of structural isomers have the same relative molar mass. (III) A pair of functional group isomers belongs to different homologous series.A. `II` and `III`B. `I` and `III`C. `I` and `II`D. `I,II` and `III`
Select the most stable carbocation from amongst the followingA. B. C. D.
Amongst `OH^(-), CH_(3)COO^(-)` and `CH_(3)O^(-)` ions, nucleophilicity decreases in the order.................. .
Which of the following pairs are not functional group isomers ?A. II and IIIB. II and IVC. I and IVD. I and II
Which of the following pairs are positive isomers ?A. I and IIB. II and IIIC. II and IVD. III and IV

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment