Question

Three pins made of copper aluminium and iron are kept in moist air which pin ill rust first

Answer 1

Answer:

All pins will rust at same rate

Explanation:

All the pins will rust at almost the same rate because the conditions for rusting of all of them are similar

Answer 2

Answer:

aluminium will rust first

Explanation:

coz aluminium is the most reactive than iron and copper

hope it will help you