Equal weight of `CH_(4) and H_(2)` are mixed in an empty container at `25^(@)C`. The fraction of the total pressure exerted by `H_(2)` is-

Equal masses of CH_(4) and O_(2) are mixed in an empty container at 25^(@)C. The fraction of the total pressure exerted by oxygen is

Equal masses of CH_4 and O_2 are mixed in an empty container at 25^@C . The fraction of the total pressure exerted by O_2 is ?

Equal weights of methane and oxygen are mixed in an empty container at 25^(@)C . The fraction of the total pressure exerted by oxygen is

Equal weights of methane and oxygen are mixed in an empty container at 25^(@)C . The fraction of the total pressure exerted by oxygen is

Equal weights of ethane and hydrogen are mixed in an empty container at 25^(@)C . The fraction of the total pressure exerted by hydrogen is

Equal weights of ethane and hydrogen are mixed in an empty container at 25^(@)C . The fraction of the total pressure exerted by hydrogen is

Equal weight of CO and CH_(4) are mixed together in an empty container at 300K. The fraction of total pressure exerted by CH_(4) is

Equal weight of CO and CH_(4) are mixed together in an empty container at 300K. The fraction of total pressure exerted by CH_(4) is