Question

plz plz answer the quedtion ​

Answer 1

Answer:

here the b part is correct because aluminium being more reactive (acc. to reactivity series) can easily replace iron from it's compound. while in first part, copper is lest reactive hence no reaction will take place

Answer 2

Explanation:

in first reaction displacement will not show any because copper is less reactive than iron where as in 2nd reaction displacement will take place because Aluminium is more reactive than iron and it will displace ferrous from ferrous sulphate solution to form Aluminium Sulphate .