Q: Which among the following are the main ingredients for manufacturing of glass?
(a)Silica, sodium carbonate, borax, alumina and cullets
(b)Iron oxide, lead, sodium bicarbonate, alumina and cullets
(c)Magnesium carbonate, alumina, silica and cullets
(d)Iron oxide, sodium, alumina, silica and cullets
Correct Answer: (a)
The correct answer is (c): Magnesium carbonate, alumina, silica and cullets. Subject: General Studies | Sub-topic: Miscellaneous