A) Calcium oxide
B) Iron oxide
C) Chromium oxide
D) Manganese oxide
Correct Answer: C
Solution :
Transition metal complexes in small quantities add colour to glass. Blue glass contains a small amount of cobalt oxide and addition of chromium (III) oxide to glass gives it a green colour. When Iron(II) oxide is added to glass, it results in bluish-green glass which is frequently used in beer bottles. Together with chromium It gives a richer green color, used for wine bottles.
You need to login to perform this action.
You will be redirected in
3 sec
