Question

can you prove that hcl +na =nacl+h2 is displacement reaction...if you prove it i will mark you as brilliant

Answer 1

Yes I can.

This follows as,

Na + HCl ---> NaCl + H2

We know that Na is a metal and HCl is an acid.

Also, acids + metal --> Salt + Hydrogen

Here, also Na reacts with HCl to liberate hydrogen gas, we find that here H is displaced as it comes below the Na in reactivity series.