MolSynapsequestion bank

MolSynapse / Question bank / Qualitative Analysis: Anions / Independent group: sulphate, phosphate, borate

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3qa198

Which statements regarding the independent group anions are correct?

A $BaSO X_{4}$ is not dissolved by dilute $HCl$ or dilute $HNO X_{3}$
B $Ag X_{3} PO X_{4}$ is insoluble in dilute $HNO X_{3}$
C $BaSO X_{4}$ dissolves in dilute $HCl$ on warming
D $Ba X_{3} (PO X_{4}) X_{2}$ dissolves in dilute $HCl$

Answer: A, D

BaSO X_{4}

is the salt of a strong acid and does not dissolve in dilute

HCl

or

HNO X_{3}

.

Ba X_{3} (PO X_{4}) X_{2}

is a salt of the weak acid

H X_{3} PO X_{4}

and dissolves as the phosphate is protonated.

Ag X_{3} PO X_{4}

dissolves in dilute

HNO X_{3}

for the same reason, and warming does not dissolve

BaSO X_{4}

in dilute

HCl

.

Practice Qualitative Analysis: Anions More on Independent group: sulphate, phosphate, borate

Previous questionNext question

More questions on Independent group: sulphate, phosphate, borate