Advertisements
Advertisements
प्रश्न
Discuss the principle of estimation of halogens present in an organic compound.
उत्तर
Estimation of halogens:
Halogens are estimated by the Carius method. In this method, a known quantity of organic compound is heated with fuming nitric acid in the presence of silver nitrate, contained in a hard glass tube called the Carius tube, taken in a furnace. Carbon and hydrogen that are present in the compound are oxidized to form CO2 and H2O respectively and the halogen present in the compound is converted to the form of AgX. This AgX is then filtered, washed, dried, and weighed.
Let the mass of organic compound be m g.
Mass of AgX formed = m1 g
1 mol of Agx contains 1 mol of X.
Therefore,
Mass of halogen in m1 g of AgX = `("Atomic mass of X" xx "m"_1 "g")/"Molecular mass of AgX"`
Thus, % of halogen will be = `("Atomatic mass of X" xx "m"_1 xx 100)/("Molecular mass of AgX" xx "m")`
APPEARS IN
संबंधित प्रश्न
0.3780 g of an organic chloro compound gave 0.5740 g of silver chloride in Carius estimation. Calculate the percentage of chlorine present in the compound.
In the estimation of sulphur by Carius method, 0.468 g of an organic sulphur compound afforded 0.668 g of barium sulphate. Find out the percentage of sulphur in the given compound.
Assertion (A): Sulphur present in an organic compound can be estimated quantitatively by Carius method.
Reason (R): Sulphur is separated easily from other atoms in the molecule and gets precipitated as light yellow solid.
In the Carius method halogens are estimated as ______.
In carius method of estimation of halogen 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of these is the correct structure of the compound?
In Carius method, halogen containing organic compound is heated with fuming nitric acid in the presence of ______.
