Question

Metals  +  Acid  →  ______

a)  Hydrochloride b)  Hydrogen c)  Oxygen d)  Ammonia

Answer 1

i guess d) Ammonia but i am not sure

Answer 2

your answer is  b) Hydrogen.

Examples: 1) 2Na + H2so4 --------> Na2So4 + H2

                  2) Mg + 2HCl -----------> MgCl2 + H2
                 
                  3) 2K + H2So4 ---------> K2So4 + H2

Please mark it brainiest answer as i mentioned three extra examples.....