30 mL of a sample containing H2(g), CH_4(g) andC(g) required 35 mL of O_2, for complete combustion. There was a contraction of 20 mLwhen the mixture was treated with KOH. What isthe composition of CH_4(g) and H_{}(g) respectively inoriginal mixture?(2) 33.33%, 33.33%(1) 50%, 25%(4) 66.67%, 15%(3) 20%, 35%

30 mL of a sample containing H2(g), CH_4(g) andC(g) required 35 mL of

1.	30 mL of a sample containing H2(g), CH_4(g) andC(g) required 35 mL of O_2, for complete combustion. There was a contraction of 20 mLwhen the mixture was treated with KOH. What isthe composition of CH_4(g) and H_{}(g) respectively inoriginal mixture?(2) 33.33%, 33.33%(1) 50%, 25%(4) 66.67%, 15%(3) 20%, 35%
Answer» 30 mL of a sample containing H2(g), CH_4(g) andC(g) required 35 mL of O_2, for complete combustion. There was a contraction of 20 mLwhen the mixture was treated with KOH. What isthe composition of CH_4(g) and H_{}(g) respectively inoriginal mixture?(2) 33.33%, 33.33%(1) 50%, 25%(4) 66.67%, 15%(3) 20%, 35%