JAMB - Chemistry (2002 - No. 35)
Hydrogen is readily released when dilute hydrochloric acid reacts with
Cu
Na
Au
Ag
Erläuterung
When alkali metals react with Hydrochloric acids. hydrogen gas is usually produced. Hence, Sodium belongs to the group of Alkali metals.
Na + HCl → NaCl + H\(_2\)