In the detection of III group basic radicals, NH4OH is added after NH4Cl to

Question

In the detection of III group basic radicals, NH4OH is added after NH4Cl to (A) increase the ionisation of NH4OH (B) increase the ionisation of salt solution (C) decrease the ionisation of salt solution (D) decrease the ionisation of NH4OH

Tardigrade Admin · Accepted Answer

NH4OH suppresses the degree of dissociation of NH4Cl hence the concentration of OH- ions in the solution decreases appreciably. Due to this, only group Ill hydroxides are precipitated having low solubility product.

Q. In the detection of III group basic radicals, $N H_{4} O H$ is added after $N H_{4} Cl$ to

increase the ionisation of $N H_{4} O H$

increase the ionisation of salt solution

decrease the ionisation of salt solution

decrease the ionisation of $N H_{4} O H$

$N H_{4} O H$ suppresses the degree of dissociation of $N H_{4} Cl$ hence the concentration of $O H^{-}$ ions in the solution decreases appreciably. Due to this, only group Ill hydroxides are precipitated having low solubility product.

Q. In the detection of III group basic radicals, NH4​OH is added after NH4​Cl to

increase the ionisation of NH4​OH