Sagot :
Answer:
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:
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 .