Which of the following attacks glass?

Question

Which of the following attacks glass? (A)  HCl  (B)  HF  (C)  HI  (D)  HBr

Tardigrade Admin · Accepted Answer

Hydrofluoric acid (HF) reacts with glass sodium and calcium silicate and greasy fluorosilicates are formed. It is called etching of glass, so HF is not stored in glass vessels. Na 2 SiO 3+6 HF longrightarrow Na 2 SiF 6+3 H 2 O Ca 2 SiO 3+6 HF longrightarrow CaSiF 6+3 H 2 O

Q. Which of the following attacks glass?

$H Cl$

$H F$

$H I$

$H B r$

Q. Which of the following attacks glass?

HCl

HF

HI

HBr

Hydrofluoric acid (HF) reacts with glass sodium and calcium silicate and greasy fluorosilicates are formed. It is called etching of glass, so HF is not stored in glass vessels. Na2​SiO3​+6HF⟶Na2​SiF6​+3H2​O Ca2​SiO3​+6HF⟶CaSiF6​+3H2​O

$H Cl$

$H F$

$H I$

$H B r$