On complete combustion, 0.3 g of an organic compound gave 0.2 g of CO ₂ and 0.1 g of H ₂ O . The percentage composition of carbon and hydrogen in the compound, respectively is:

Step-by-step solution

Percentage of carbon = 12 m ₂ 100 44 m m = mass of organic compound =0.3 ~g m ₂= mass of carbon dioxilde =0.2 ~g % C= 12 0.2 100 44 0.3 =18.18 % Percentage of hydrogen = 2 m ₁ 100 18 m m ₁= mass of water =0.1 ~g % H = 2 0.1 100 18 0.3 =3.70 %