Activity 3.11 NCERT Class 10 Science, Chapter 3 Metals and Non-metals
Activity 3.11 asks us to react to various metals with dilute hydrochloric acid and observe the reaction.
Metals react with dilute hydrochloric acid and form metal chlorides with the evolution of hydrogen gas.
Metal(s) + HCl(aq) ———–> Metal Chloride(aq) + H2(g)
Ca(s) + 2HCl(aq) ————-> CaCl2(aq) + H2(g)
Order of reactivity:
Temperature during the reaction:
Experiment done at room temperature (25˚C).
Metals react with acids to form their salt. The process is exothermic and hydrogen gas is also produced.