Common errors with that, which, who, whom, whose, where, and when — IITM BS previous year questions

Common errors with that, which, who, whom, whose, where, and when is part of Relative and Noun Clauses, Week 2 in English 2. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.