Home
Class 12
CHEMISTRY
NaCN is sometimes added in the froth flo...

`NaCN` is sometimes added in the froth flotation process as a depressant when `ZnS` and `PbS` minerals are expected because `:`

A

ZnS from soluble comple `Na_2[Zn(CN)_(4)]` while PbS forms froth

B

`Pb(CN)_(2)` is precipitated while no effect on ZnS

C

PbS forms soluble complex ` Na_(2)[Pb(CN)_(4)]` while ZnS forms froth

D

NaCN is never added in froth floatation process

Text Solution

Verified by Experts

The correct Answer is:
A
NaCN acts as a depressant for ZnS but does not prevent PbS from forming the froth .
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|29 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|14 Videos

  • ELECTROCHEMISTRY

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|32 Videos

  • HYDROGEN

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2|20 Videos

Similar Questions

Explore conceptually related problems

NaCN is sometimes added in the frouth flotation process as a depresant when ZnS and PbS minerals are expected because:

The substance added in water in the froth floatation process is

Pine oil is generally added in the froth floatation process. Explain.