Non-examples and common failures of vector-space axioms — IITM BS previous year questions

Non-examples and common failures of vector-space axioms is part of Vector Space Definition, Week 3 in Mathematics 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.