Test Index

Salt Analysis

Section: Chemistry

© examsnet.com

Question : 11 of 17

Marks: +1, -0

Passing

H_2S

gas into a mixture of

Mn^{2+}, Ni^{2+}, Cu^{2+}

Hg^{2+}

ions in an acidified aqueous solution precipitates

[JEE Adv 2011 P2]

CuS and HgS
MnS and CuS
MnS and NiS
NiS and HgS

Solution:

Cu^{2+}

and

Hg^{2+}

ions belong to Group II of inorganic salt analysis and their sulphides are very less soluble in aqueous medium.

Hence, CuS and HgS will be precipitated out even in acidic medium by passing

H_2S

gas.

© examsnet.com

Go to Question:

Prev Question

Next Question