4g H_(2),32g" "O_(2),14 g N_(2) and 11g CO_(2) are taken in a bulb of 500ml. Which one of these has maximum active mass ?

4g H_(2),32g" "O_(2),14 g N_(2) and 11g CO_(2) are taken in a bulb of

1.	4g H_(2),32g" "O_(2),14 g N_(2) and 11g CO_(2) are taken in a bulb of 500ml. Which one of these has maximum active mass ?
Answer» `H_(2)` `O_(2)` `N_(2)` `CO_(2)` ANSWER :A