Question

Atomic number of metal “A” is 11, while atomic number of metal “B” is 20.

Which of them will be more reactive? Write the chemical reaction of dilute

hydrochloric acid (Hcl) with metal “A”.​

Answer 1

Answer:

A metal is Sodium (Na) and B is Calcium (Ca).

A metal will be more reactive.

Reaction of A, i.e, Na with dilute HCl:-

2Na + 2HCl (dil.) ————> 2NaCl + H2