Question 37
Chemistry and IndustryWhich of the following is used in the manufacture of glass?
- A.Sodium chloride
- B.Sodium trioxocarbonate (IV).
- C.Sodium tetraoxosulphate (VI).
- D.Sodium trioxonitrate (V).
Show the answer and explanation
Answer: B (Sodium trioxocarbonate (IV).)
Explanation
Glass is made by melting sand with sodium trioxocarbonate (IV) (soda ash) and limestone: Na2CO3 + SiO2 → Na2SiO3 + CO2.