See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

R = {(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (1, 2), (2, 1), (4, 6), (6, 4), (5, 6), (6, 5), (4, 5), (5, 4)}