A mixture of `CO, CO_2` and `He` on passing over red hot coke shows `40 %` increment in volume. What is the mole fraction of `CO_2` in the given mixture ?

When a mixture of air and steam is passed over red hot coke, the outcoming gas contains :

When a mixture of air and steam is passed over red hot coke, the outgoing gas is:

When a mixture of air and steam is passed over red hot coke, the outgoing gas is:

16 cc of CO_(2) are passed over red hot coke. The volume of CO evolved is :-

Which gas is obtained when CO_2 is passed over red hot coke ?

2 g of a mixture of CO and CO_2 on reaction with excess I_(2)O_(5) produced 2.54g of I_2 . What will be the mass percentage of CO_(2) in the original mixture ?