A fixed mass of pure sample of cyclopentadiene reacted with different reagents to form gases A, B and C in independent experiments. Most basic gas released in the above process, stoichiometrically, can be neutralized by 100 ml of $p^H=1HC\mathcal{l}$ solution. Total millimoles of A , B & C produced are X. what is the X/10 __________(nearest integer)

The temperature is constant at 300 K, and all are ideal gases.