Which of the following is the most stable free radical?

Question

Which of the following is the most stable free radical? (A) CH 3 dot C H 2 (B) CH 3 dot C HCH 3 (C) CH 3 dot C H C 6 H 5 (D) C 6 H 5 CH 2 dot C H 2

Tardigrade Admin · Accepted Answer

Due to hyper conjugation and resonance the stability order of free radicals is 3°>2°>1° <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/89407b66268213675d1e48620dbc04e8-.png" />

Q. Which of the following is the most stable free radical?

$C H_{3} \dot{C} H_{2}$

$C H_{3} \dot{C} H C H_{3}$

$C H_{3} \dot{C} H C_{6} H_{5}$

$C_{6} H_{5} C H_{2} \dot{C} H_{2}$

Due to hyper conjugation and resonance the stability order of free radicals is $3^{\circ} > 2^{\circ} > 1^{\circ}$

Q. Which of the following is the most stable free radical?

CH3​C˙H2​

CH3​C˙HCH3​

CH3​C˙HC6​H5​

C6​H5​CH2​C˙H2​

Due to hyper conjugation and resonance the stability order of free radicals is 3∘>2∘>1∘

$C H_{3} \dot{C} H_{2}$

$C H_{3} \dot{C} H C H_{3}$

$C H_{3} \dot{C} H C_{6} H_{5}$

$C_{6} H_{5} C H_{2} \dot{C} H_{2}$

Due to hyper conjugation and resonance the stability order of free radicals is $3^{\circ} > 2^{\circ} > 1^{\circ}$