CBSE Class 12-science Answered
Pl answer
Asked by jain.pradeep | 27 Feb, 2020, 02:49: PM
Expert Answer
Option (c) is correct.
In the cyanide extraction process of silver from argentite ore the oxidising and reducing agents used are O2 and Zn dust respectively.
The reactions involved in cyanide ectraction process are:
Ag2S + 4NaCN → 2Na[Ag(CN)2] + Na2S
4Na2S + 5O2 + 2H2O → 2Na2SO4 + 4NaOH + 2S
oxidising agent
2Na[Ag(CN)2] + Zn → Na2[Zn(CN)4] + 2Ag−
Reducing agent
Answered by Varsha | 27 Feb, 2020, 05:31: PM
Concept Videos
-
Principles of Metallurgy
This video explains thermodynamic and electrochemical principles involved i... -
Reduction Process and Ellingham Diagram
This video explains thermodynamic and electrochemical principles involved i... -
Thermodynamic Principles of Metallurgy
This video includes Thermodynamic and electrochemical principles involved i...
CBSE 12-science - Chemistry
Asked by yashrajgharte24.12dgatl | 14 Oct, 2021, 10:13: PM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by bindersaran3 | 04 Jun, 2020, 09:18: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by tribikramdash16 | 16 May, 2020, 06:51: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by jain.pradeep | 28 Feb, 2020, 11:39: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by jain.pradeep | 27 Feb, 2020, 02:49: PM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by jain.pradeep | 27 Feb, 2020, 02:49: PM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by jain.pradeep | 26 Feb, 2020, 09:58: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by sree1791983 | 23 Feb, 2020, 08:38: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by taruarora2605 | 26 Jan, 2020, 11:58: AM
ANSWERED BY EXPERTCBSE 12-science - Chemistry
Asked by Vidushi412 | 02 Mar, 2019, 02:48: PM
ANSWERED BY EXPERT
