Question

Which of the following materials fall in the category of of a "pure substance" ?
i)Ice
ii)Milk
iii)Iron
iv)Hydrochloric acid
v)Calcium oxide
vi)Mercury
vii)Brick
viii)Wood
ix)Air

Answer 1

Here is your answer,

Your answer is Ice, iron, Mercury, Hydrochloric acid, calcium chloride.

I hope my answer is helpful for you. Mark on brain list.

Answer 2

hey friend here is your answer

_________________________________

the pure substances are ice,iron,hydrocholric acid,calcium oxide and Mercury.

_________________________________

hope it helps you
Mark as brainliest☺️☺️❤️❤️