Question

Equal moles of h2 o2 and methane have been taken in a container

Answer 1

For every 1 mol of oxygen you need 16 of hydrogen and 2 of methane for equal mass. The ratio of their volumes is 1 (O2) : 16 (H2) : 2 (CH4). ... Therefore the ratio of their volumes is 1 (O2) : 16 (H2) : 2 (CH4).