A) \[NaCN\]
B) \[NaCN\]in presence of\[{{O}_{2}}\]
C) \[NaCl\]
D) \[AgN{{O}_{3}}\]
Correct Answer: A
Solution :
\[NaCN\]reagent is used to extract silver from \[A{{g}_{2}}S\]as: \[\underset{\begin{smallmatrix} \,\,\,Silver \\ Sulphide \end{smallmatrix}}{\mathop{A{{g}_{2}}S}}\,+\underset{\begin{smallmatrix} Sodium \\ cyanide \end{smallmatrix}}{\mathop{4NaCN(aq)}}\,\xrightarrow{{}}2Na[Ag{{(CN)}_{2}}]\] \[+N{{a}_{2}}S+Zn\] \[N{{a}_{2}}[Zn{{(CN)}_{4}}]+2Ag\downarrow \]
You need to login to perform this action.
You will be redirected in
3 sec
