Solution:
Nickel is more reactive than lead and tin so it can displace lead and tin and it also gives hydrogen gas when reacting with acid.
An element ‘X’ after reacting with acids liberate hydrogen gas and can displace lead and tin from their salt solution. The metal ‘X’ is-
An element 'X' after reacting with acids liberate hydrogen gas and can displace lead and tin from their salt solution. The metal 'X' is-
