1.
\(Al+Dil.HCl→AlCl_3+?\)
2.
When metals react with \(HCl\), hydrogen gas is produced; when they react with \(HNO_3\), no hydrogen gas is produced. On the other hand, magnesium and manganese form hydrogen gas when they react with very dilute \(HNO_3\). The metal that is unaffected by \(HNO_3\) and \(HCl\) is