Question

When Iron is put into acid a gas released which is odor less and when Ironsulphid is put into acid released a gas that gives rotten egg smell this difference in observation conclude that.(Select the appropriate conclusion)
(i)Iron is an element
(ii) Iron sulphide is not a compound
(iii) Iron loses its property in iron sulphide and it develop a new property
(iv)Iron is pure substance and compound is impure substance



plz answer.....urgent

Answer 1

Answer:

I think part 3

Explanation:

I m no full sure