In Carius tube, an organic compound ' X ' is treated with sodium peroxide to form a mineral acid ' Y '. The solution of BaCl 2 is added to ' Y ' to form a precipitate &#0

Question

In Carius tube, an organic compound ' X ' is treated with sodium peroxide to form a mineral acid ' Y '. The solution of BaCl 2 is added to ' Y ' to form a precipitate ' Z '. ' Z ' is used for the quantitative estimation of an extra element. ' X ' could be

TestHub · Accepted Answer

Barium chloride is used estimate sulphur content in the molecule. In Carius tube test, a known mass of sulphur present in an organic compound with Silver Nitrate is heated into a sealed tube known as Carius tube with silver. The organic compound is then converted to Sulphuric acid which then reacts with excess Barium Chloride solution and produces a precipitate of Barium Sulphate. $Z$ is ${BaSO}_{4}$ and $Y$ is $H_{2} {SO}_{4}$
It is clear that " $X$ " must contain sulphur. Methionine is $C_{5} H_{11} {NO}_{2} S$ , a sulphur contaning amino acid

Chemistry - PRACTICAL ORGANIC CHEMISTRY Question with Solution | TestHub

Options:

Doubts & Discussion

JEE Main (2028)