See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

C2H2 + CO + O2  CO2 + H2O Volume initially x ml (20 – x) ml 30 ml Volume left 8 ml 26 ml 2 × Volume of C2H2 taken + volume of CO taken = Volume of CO2. 2 x + 20 – x = 26 ; x = 6 ml. Volume of C2H2 taken = 6 ml and volume of CO taken = 14 ml.