of a mixture of and was exploded with of . After cooling, the volume was . After treatment with , th — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

$10 \text{ mL}$ of a mixture of $CH_4$ and $C_2H_4$ was exploded with $30 \text{ mL}$ of $O_2$. After cooling, the volume was $21 \text{ mL}$. After treatment with $KOH$, the volume was $7 \text{ mL}$. Calculate the volume of $CH_4$ in the mixture.