A) Mg
B) Pb
C) Zn
D) Sn
Correct Answer: C
Solution :
[c] \[\underset{(M)}{\mathop{Zn}}\,~\xrightarrow{dil.HN{{O}_{3}}}\underset{\begin{smallmatrix} Colourless \\ solution \end{smallmatrix}}{\mathop{Zn{{\left( N{{O}_{3}} \right)}_{2}}}}\,~\xrightarrow[aq.]{NaOH}\underset{White\,ppt.}{\mathop{Zn{{\left( OH \right)}_{2}}}}\,\] \[\xrightarrow[NaOH]{Excess}N{{a}_{2}}\underset{So\operatorname{lub}le}{\mathop{[Zn{{(OH)}_{4}}]}}\,\xrightarrow{{{H}_{2}}S}\underset{White\,ppt.}{\mathop{ZnS}}\,\]
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