Question

the product obtained when silica react with HCl isthe product obtained when silica react with HCl is please answer

Answer 1

cl2sio + h............

Answer 2

The final product formed upon reaction of silica with HCl is - Fumed silica.

Silica is allowed to react with HCl by using technologies like carbon black production in the manufacture of fumed silica which is released as fumes or smoke.

Silica (SiO₂) is allowed to react with dry gaseous HCl, which forms Silicon tetrachloride.

SiO₂ + 4HCl → SiCl₄ + 2H₂O

These products are then fed into the reactor's burner tube along with hydrogen and air.

2H₂ + O₂ → 2H₂O

SiCl₄ + 2H₂O → SiO₂ + 4HCl.

The HCl released is recycled and fumed silica is obtained as smoke.