Carbon dioxide contains `27.27%` of carbon, carbon disulphide contains `15.79%` of carbon and sulphur dioxide contains `50%` of sulphur. Are these figures in agreements with the law of reciprocal proportions?

Explanation

`"1 g C will combine with S"=(84.21)/(15.79)=5.33g`
`"1 g C will combine with O"=(72.73)/(27.27)=2.67g`
`therefore` Ratio of masses of S and O which combine with fixed mass of carbon (viz 1 g) = `5.33:2.67=2:1.`
Ratio of masses of S and O which combine directly with each other `=50:50=1:1`. Thus, the two rations are simple multiple of each other.