A) \[Fe\]
B) \[Zn\]
C) \[Cu\]
D) \[Ag\]
Correct Answer: B
Solution :
Zinc is quite reactive metal. It dissolves in excess of hot \[NaOH\] to give sodium zincate. \[Zn+2NaOH\xrightarrow{{}}\underset{sodium\,zincate}{\mathop{N{{a}_{2}}Zn{{O}_{2}}+{{H}_{2}}}}\,\uparrow \]
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