CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317465
Arrange the following free radicals in order of decreasing stability. Methyl (I), Vinyl (II), Allyl (III), Benzyl (IV)Methyl
1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) II \(>\) I \(>\) IV
3 II \(>\) I \(>\) IV \(>\) III
4 IV \(>\) III \(>\) I \(>\) II
Explanation:
Among the alkyl free radicals, tertiary alkyl free radicals are most stable and methyl free radical is least stable.Benzyl and allyl free radicals are resonance stabilized and are more stable than alkyl free radicals. Vinyl radical is least stable as the odd electron is present on \(\mathrm{sp}^{3} \mathrm{C}\)-atom. \(\therefore \) order is benzyl (IV) >allyl (III) > methyl (I) > vinyl (II).
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317466
Identify most stable free radical from the following.
The observed stability order of alkly free radicals is : \(3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3}\) f.r. \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C} \cdot>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH} \cdot>\mathrm{CH}_{3}-\mathrm{CH}_{2} \cdot>\mathrm{CH}_{3} \cdot\)
MHTCET - 2021
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317467
Free radicals can undergo
1 Rearrangements to a more stable free radical
2 Decomposition to give another free radical
3 Combination with other free radical
4 All are correct
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317468 is
1 Triphenyl radical
2 Ter-phenyl radical
3 Trityl radical
4 None of these
Explanation:
Trityl radical is \(\mathrm{Ph}_{3} \dot{\mathrm{C}}\) radical.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317465
Arrange the following free radicals in order of decreasing stability. Methyl (I), Vinyl (II), Allyl (III), Benzyl (IV)Methyl
1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) II \(>\) I \(>\) IV
3 II \(>\) I \(>\) IV \(>\) III
4 IV \(>\) III \(>\) I \(>\) II
Explanation:
Among the alkyl free radicals, tertiary alkyl free radicals are most stable and methyl free radical is least stable.Benzyl and allyl free radicals are resonance stabilized and are more stable than alkyl free radicals. Vinyl radical is least stable as the odd electron is present on \(\mathrm{sp}^{3} \mathrm{C}\)-atom. \(\therefore \) order is benzyl (IV) >allyl (III) > methyl (I) > vinyl (II).
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317466
Identify most stable free radical from the following.
The observed stability order of alkly free radicals is : \(3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3}\) f.r. \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C} \cdot>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH} \cdot>\mathrm{CH}_{3}-\mathrm{CH}_{2} \cdot>\mathrm{CH}_{3} \cdot\)
MHTCET - 2021
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317467
Free radicals can undergo
1 Rearrangements to a more stable free radical
2 Decomposition to give another free radical
3 Combination with other free radical
4 All are correct
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317468 is
1 Triphenyl radical
2 Ter-phenyl radical
3 Trityl radical
4 None of these
Explanation:
Trityl radical is \(\mathrm{Ph}_{3} \dot{\mathrm{C}}\) radical.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317465
Arrange the following free radicals in order of decreasing stability. Methyl (I), Vinyl (II), Allyl (III), Benzyl (IV)Methyl
1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) II \(>\) I \(>\) IV
3 II \(>\) I \(>\) IV \(>\) III
4 IV \(>\) III \(>\) I \(>\) II
Explanation:
Among the alkyl free radicals, tertiary alkyl free radicals are most stable and methyl free radical is least stable.Benzyl and allyl free radicals are resonance stabilized and are more stable than alkyl free radicals. Vinyl radical is least stable as the odd electron is present on \(\mathrm{sp}^{3} \mathrm{C}\)-atom. \(\therefore \) order is benzyl (IV) >allyl (III) > methyl (I) > vinyl (II).
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317466
Identify most stable free radical from the following.
The observed stability order of alkly free radicals is : \(3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3}\) f.r. \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C} \cdot>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH} \cdot>\mathrm{CH}_{3}-\mathrm{CH}_{2} \cdot>\mathrm{CH}_{3} \cdot\)
MHTCET - 2021
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317467
Free radicals can undergo
1 Rearrangements to a more stable free radical
2 Decomposition to give another free radical
3 Combination with other free radical
4 All are correct
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317468 is
1 Triphenyl radical
2 Ter-phenyl radical
3 Trityl radical
4 None of these
Explanation:
Trityl radical is \(\mathrm{Ph}_{3} \dot{\mathrm{C}}\) radical.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317465
Arrange the following free radicals in order of decreasing stability. Methyl (I), Vinyl (II), Allyl (III), Benzyl (IV)Methyl
1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) II \(>\) I \(>\) IV
3 II \(>\) I \(>\) IV \(>\) III
4 IV \(>\) III \(>\) I \(>\) II
Explanation:
Among the alkyl free radicals, tertiary alkyl free radicals are most stable and methyl free radical is least stable.Benzyl and allyl free radicals are resonance stabilized and are more stable than alkyl free radicals. Vinyl radical is least stable as the odd electron is present on \(\mathrm{sp}^{3} \mathrm{C}\)-atom. \(\therefore \) order is benzyl (IV) >allyl (III) > methyl (I) > vinyl (II).
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317466
Identify most stable free radical from the following.
The observed stability order of alkly free radicals is : \(3^{\circ}>2^{\circ}>1^{\circ}>\mathrm{CH}_{3}\) f.r. \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C} \cdot>\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH} \cdot>\mathrm{CH}_{3}-\mathrm{CH}_{2} \cdot>\mathrm{CH}_{3} \cdot\)
MHTCET - 2021
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317467
Free radicals can undergo
1 Rearrangements to a more stable free radical
2 Decomposition to give another free radical
3 Combination with other free radical
4 All are correct
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317468 is
1 Triphenyl radical
2 Ter-phenyl radical
3 Trityl radical
4 None of these
Explanation:
Trityl radical is \(\mathrm{Ph}_{3} \dot{\mathrm{C}}\) radical.
