Reactivity of hydrogen atoms attached to different carbon atoms in alkanes has the order

Question

Reactivity of hydrogen atoms attached to different carbon atoms in alkanes has the order (A) tertiary > primary > secondary (B) primary > secondary > tertiary (C) Both (a) and (b) (D) tertiary > secondary > primary

Tardigrade Admin · Accepted Answer

Tertiary alkanes are more reactive because they form tertiary free radical which is more stable whereas primary alkanes are less reactive because they form 1° free radicals which are less stable.

Q. Reactivity of hydrogen atoms attached to different carbon atoms in alkanes has the order

tertiary > primary > secondary

primary > secondary > tertiary

Both (a) and (b)

tertiary > secondary > primary

Tertiary alkanes are more reactive because they form tertiary free radical which is more stable whereas primary alkanes are less reactive because they form $1^{\circ}$ free radicals which are less stable.

Q. Reactivity of hydrogen atoms attached to different carbon atoms in alkanes has the order

tertiary > primary > secondary

primary > secondary > tertiary

Both (a) and (b)

tertiary > secondary > primary

Tertiary alkanes are more reactive because they form tertiary free radical which is more stable whereas primary alkanes are less reactive because they form 1∘ free radicals which are less stable.

Tertiary alkanes are more reactive because they form tertiary free radical which is more stable whereas primary alkanes are less reactive because they form $1^{\circ}$ free radicals which are less stable.