Question: Which raw material is used in the preparation of soft glass?
Options:
A) $ K _2CO _3,Sio _2,CaCO _3 $
B) $ K _2CO _3,SiO _2,PbCO _3 $
C) $ Na _2CO _3,SiO _2,CaCO _3 $
D) $ Na _2CO _3,SiO _2,PbO $
Show Answer
Answer:
Correct Answer: C
BETA
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