Question

Twenty millilitres of a gaseous hydrocarbon required 400 ml of iar for complete cumbustion. The air contains `20%` by explosion and cooling was found to be 380 ml.
Q. volume of residual nitrogen is:
A. 300 ml
B. 310 ml
C. 320 ml
D. 330 ml

Answer 1

Correct Answer - C
Volume of residual `N_2=(400-80)=320ml`