Question

What happens when you immerse an iron nail in lemon juice ?​

Answer 1

When iron nail is kept in lemon juice then they will react with each other as lemon juice is acidic (due to citric acid) and thus hydrogen gas will evolve and a salt residue will left behind .

Answer 2

Answer:

as the iron nail is dipped in lemon juice, they both will react with each other due to the the acidic nature of lemon juice. hydrogen gas is evolved in this reaction.