The metal_____________ can react both with acid as well as alkalis.
Zinc is amphoteric in nature i.e. it reacts with both acids and hot concentrated alkalis to form hydrogen and soluble salt.
Reaction with acids:
When zinc reacts with hydrogen chloride it forms zinc chloride and hydrogen gas.
Reaction with base:
When zinc reacts with sodium hydroxide it forms sodium zincate and hydrogen gas.
Therefore, the metal zinc can react both with acid as well as to alkalis.