Four experiments on rusting are shown below.
Which two experiments can be used to show that air is needed for iron to rust?
(A) 1 and 3 (B) 1 and 4 (C) 2 and 3 (D) 2 and 4
Please explain solution for this question. The answer given by Sofolympiadtrainer site is B. I believe it should be C.
Which two experiments can be used to show that air is needed for iron to rust?
(A) 1 and 3 (B) 1 and 4 (C) 2 and 3 (D) 2 and 4
Please explain solution for this question. The answer given by Sofolympiadtrainer site is B. I believe it should be C.