+1 vote
in Food Packaging Technology by (63.0k points)
Which of the following gives black color to glass?

(a) MnO

(b) CdS

(c) Sb2S3

(d) Co3O4

I had been asked this question by my school principal while I was bunking the class.

This is a very interesting question from Properties of Glass in section Glass Packaging Materials of Food Packaging Technology

1 Answer

+1 vote
by (194k points)
selected by
 
Best answer
Correct answer is (d) Co3O4

The best explanation: Co3O4 (+ Mn, Ni, Fe, Cu, Cr oxides) gives black color to glass. Sb2S3 gives red color to glass. CdS gives yellow color to glass. MnO gives brown color to glass.

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community
...