D-And F-Block Elements Ques 478
Question: A metal M and its compound can give the following observable changes in a consequence of reactions
Options:
A) Mg
B) Pb
C) Zn
D) Sn
Show Answer
Answer:
Correct Answer: C
Solution:
$ \underset{(M)}{\mathop{Zn}},~\xrightarrow{dil.HNO_3}\underset{\begin{smallmatrix} Colourless \\ solution \end{smallmatrix}}{\mathop{Zn{{( NO_3 )}_2}}},~\xrightarrow[aq.]{NaOH}\underset{White,ppt.}{\mathop{Zn{{( OH )}_2}}}, $ $ \xrightarrow[NaOH]{Excess}Na_2\underset{Soluble}{\mathop{[Zn{{(OH)}_4}]}},\xrightarrow{H_2S}\underset{White,ppt.}{\mathop{ZnS}}, $
