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....very urgent

Answer 1

iii) part is the correct answer

Answer 2

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