SATHEE: Organic Chemistry Some Basic Principles and Techniques

Organic Chemistry Some Basic Principles and Techniques - Result Question 48

####54. Homolytic fission of the following alkanes forms free radicals $C H_{3} - C H_{3}, C H_{3} - C H_{2} - C H_{3}$ , $(C H_{3})_{2} C H - C H_{3}, C H_{3} - C H_{2} - C H (C H_{3})_{2}$ . Increasing order of stability of the radicals is

[NEET Kar. 2013]

(a) $(C H_{3})_{3} \dot{C} < (C H_{3})_{2} \dot{C} - C H_{2} C H_{3} <$ $C H_{3} - \dot{C} H - C H_{3} < C H_{3} - \dot{C} H_{2}$

(b) $(C H_{3})_{2} \dot{C} - C H_{2} C H_{3} < C H_{3} - \dot{C} H - C H_{3} <$ $C H_{3} - \dot{C} H_{2} < (C H_{3})_{3} \dot{C}$

(c) $C H_{3} - \dot{C} H_{2} < C H_{3} - \dot{C} H - C H_{3} <$ $(C H_{3})_{2} \dot{C} - C H_{2} - C H_{3} < (C H_{3})_{3} \dot{C}$

(d) $C H_{3} - \dot{C} H_{2} < C H_{3} - \dot{C} H - C H_{3} < (C H_{3})_{3}$ $\dot{C} < (C H_{3})_{2} \dot{C} - C H_{2} C H_{3}$

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Organic Chemistry Some Basic Principles and Techniques - Result Question 48

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