Question

During gas welding of steel using Oxy- acetylene Neutral flame, the acetylene consumed is 10 liters. The total oxygen consumption is ______liters.

• A. 8
• B. 25
• C. 14
• D. 10

Answer 1

The correct option is B 25

$\text{For complete combustion of 1 unit volume of C}{}_2\text{H}{}_2$
$\text{in total 2.5 units volume of O}{}_2\text{is required out of which 1 unit volume}$
$\text{is obtained from O}{}_2\text{cylinder and 1.5 units volume is obtained from atmosphere.}$
$\text{So, for 10 liters of C}{}_2\text{H}{}_2\text{consumption we required total 25 liters of Oxygen.}$