Question

Which of the following are considered pure substances?

A.element
B.compound
C.homogeneous mixture
D.heterogeneous mixture

Answer 1

element is a pure substance

Answer 2

Hi , friend !!!

here is your answer !!!

pure substance :- which is made of single / more than one type of Atom , they have fixed composition throughout ,


so , pure substance is Element :-
Element are made up of same type of Atom .


and Compound also , which is made up different types of Atoms


so your answer is A element and B compuond



since they both are pure substance


hope it help you !!!

thanks
$ranjan$