Name two metals which react with dilute $HNO_{3}$ to evolve $H_{2}$ gas.
(N/A) Generally,metals do not evolve $H_{2}$ gas when reacting with dilute $HNO_{3}$ because it is a strong oxidizing agent that oxidizes the produced $H_{2}$ to water. However,magnesium $(Mg)$ and manganese $(Mn)$ are exceptions that react with very dilute $HNO_{3}$ to evolve $H_{2}$ gas.
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