Chemistry (M.Phil./Ph.D.) 2016 Panjab University Entrance Exam With Answers

Practice Mode:
25.

Identify the correct order of solubility of Na2S, CuS and ZuS in aqueous solution -

A: CuS>ZnS>Na2S
B: ZnS>Na2S>CuS
C: Na2S>CuS>ZnS
D: Na2S>ZnS>CuS

The answer is: D