Glass
Dear SSC CGL Aspirants, you might have observed that every year a lot of questions are asked from the Chapter “Manufacturing of Glass“. Keeping in view the importance of the topic, We have provided notes on this topic. Now, it’s time to check your knowledge. Based on notes you can answer these questions:
Q1.which metal oxide gives red colour to the glass?
Ans:Cuprous oxide
Q2.which metal oxide gives blue colour to the glass?
Ans:Cobalt oxide
Q3.which metal oxide gives yellow colour to the glass?
Ans:Cadmium
Q4.which metal oxide gives brown colour to the glass?
Ans:Ferric oxide
Q5.Broken glass pieces used in tank furnace for the manufacturing of glass is:
Ans:Cullet
Q6. chemical formula of glass:
Ans:Na2O.CaO.6SiO2.
Q7.which glass is used in making decorative glassware?
Ans:Lead crystal glass
Q8.Glass, which can shatter into jagged shards when broken?
Ans:Tempered glass
Q9.Tempered glass is a kind of:
Ans:Safety glass
Q10.Borosilicate glass is also called:
Ans:Pyrex glass
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