See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

A B(x) C(y/2) D(z/3) a - x - y - z  d A dy dx dz dt dt dt dt         d B d C d z 1 1 dt 2 dt 3 dt       1 2 3 A 2 A 3 A        3 3 3 60 10 2 25 10 3 5 10           3 125 10   avg. 3 1 1 t 8 sec. 125 10     