Excess of isobutane on reaction with Br 2 in presence of light at 125° C gives which one of the following, as the major product?

Question

Excess of isobutane on reaction with Br 2 in presence of light at 125° C gives which one of the following, as the major product? (A) CH3 - underset overset|CH3 overset underset|BrC - CH2 - Br (B) CH3 - underset overset|CH2BrCH - CH2Br (C) CH3 - underset overset|CH3CH - CH2Br (D) CH3 - underset overset|CH3 overset underset|CH3C - Br

Tardigrade Admin · Accepted Answer

underset text(excess isobutane)CH3 - overset underset|CH3CH - CH3 xrightarrow[hν/Δ]Br2 CH3- underset overset|Br overset underset|CH3C - CH3

Q. Excess of isobutane on reaction with $B r_{2}$ in presence of light at $12 5^{\circ} C$ gives which one of the following, as the major product?

$C H_{3} - C ∣ H_{3} C ∣ B r - C H_{2} - B r$

$C H_{3} - C ∣ H_{2} B r C H - C H_{2} B r$

$C H_{3} - C ∣ H_{3} C H - C H_{2} B r$

$C H_{3} - C ∣ H_{3} C ∣ C H_{3} - B r$

$(excess isobutane) C H_{3} - C ∣ C H_{3} H - C H_{3} B r_{2} h ν /Δ C H_{3} - B ∣ r C ∣ C H_{3} - C H_{3}$

Q. Excess of isobutane on reaction with Br2​ in presence of light at 125∘C gives which one of the following, as the major product?

CH3​−C∣H3​C∣B​r​−CH2​−Br

CH3​−C∣H2​BrCH​−CH2​Br

CH3​−C∣H3​CH​−CH2​Br

CH3​−C∣H3​C∣C​H3​​−Br