MolSynapsequestion bank

MolSynapse / Question bank / Qualitative Analysis: Cations / Group I and group II cations (Pb, Cu, Bi, Cd, As, Sb, Sn)

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3qc048

Select the correct statements about bismuth(III).

APouring a $BiCl X_{3}$ solution into much water gives white $BiOCl$ through hydrolysis.
BSodium stannite reduces $Bi (OH) X_{3}$ to black metallic bismuth.
C $Bi X_{2} S X_{3}$ dissolves in yellow ammonium sulphide as a thiobismuthate.
DAqueous $NaOH$ gives white $Bi (OH) X_{3}$ , which does not dissolve in excess alkali.

Answer: A, B, D

Bi X^{3 +}

hydrolyses on dilution, its hydroxide is not amphoteric, and stannite (

Sn X^{2 +}

going to

Sn X^{4 +}

) reduces it to the element.

Bi X_{2} S X_{3}

is a basic sulphide and remains insoluble in yellow ammonium sulphide (group IIA), so statement 4 is false.

Practice Qualitative Analysis: Cations More on Group I and group II cations (Pb, Cu, Bi, Cd, As, Sb, Sn)

Previous questionNext question

More questions on Group I and group II cations (Pb, Cu, Bi, Cd, As, Sb, Sn)

75.0 mL of 0.0860 M CuSO4 solution, acidified with dilute HCl, is treated with excess H2S. Assuming complete precipitation as CuS (molar mas... JEE Main level
Select the correct statements about lead(II). JEE Advanced level
Select the correct statements about copper(II) in the qualitative scheme. JEE Advanced level
Tin(II) sulphide dissolves in yellow ammonium sulphide according to SnS + S2^2- -> SnS3^2-. Select the correct statements. JEE Advanced level
Which of the following sulphides dissolve in yellow ammonium sulphide? JEE Advanced level
A colourless salt solution turns turbid white on dilution with water. With H2S in dilute HCl it gives a dark brown precipitate that is insol... JEE Advanced level