Question

CaO + SiO2 ------ CaSiO3 which one of the compound act as a flux in the above equation​

Answer 1

Calcium oxide (CaO) combines with silicon dioxide (SiO2) to form a new product as calcium silicate (CaSiO3). This is a combination reaction.

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Answer 2

In the equation CaO + SiO2 ------ CaSiO3 the compound acts as a flux is CaO.

• In the extraction of iron, CaO is used as a basic flux due to the presence of impurities in acidic silica.
• The product formed on reaction of this substance forms CaSiO3, which is known as slag.
• Similarly, in the extraction of cu impurity present is FeO and the flux is SiO2. The slag this formed is FeSiO3.
• Extraction of iron occurs in blast furnace and extraction of cu in bessmer converter.