It seems like the answer options are missing from your query. A tertiary alkyl halide, like 2-bromo-2-methylpropane (or tert-butyl bromide), would not undergo an SN2 reaction because of steric hindrance.
Which of the following alkyl halides may undergo SN² reaction except?
Review the verified answer and explanation for this SPSC – Sindh Public Service Commission past-paper question on CampusFin.
Question context
This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.