A) \[Fe\]
B) \[Al\]
C) \[Na\]
D) All of these
Correct Answer: A
Solution :
Brown glass contains \[F{{e}_{2}}{{O}_{3}}\] with sodium and calcium silicates. Cement also contain little \[F{{e}_{2}}{{O}_{3}}\](about 1%).You need to login to perform this action.
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