• # question_answer Which one of the following dissolve  in hot concentrated $NaOH$ solution [IIT 1980] A) $Fe$ B) $Zn$ C) $Cu$ D) $Ag$

$Zn+2NaOH\xrightarrow{\text{heat}}N{{a}_{2}}Zn{{O}_{2}}+{{H}_{2}}$