A) HCl
B) HF
C) HI
D) HBr
Correct Answer: B
Solution :
Glass being a mixture of sodium and calcium silicates reacts with hydrofluoric acid forming sodium and calcium fluorosilicates respectively. \[N{{a}_{2}}Si{{O}_{3}}+3{{H}_{2}}{{F}_{2}}\to N{{a}_{2}}Si{{F}_{4}}+3{{H}_{2}}O\] \[CaSi{{O}_{3}}+3{{H}_{2}}{{F}_{2}}\to CaSi{{F}_{4}}+3{{H}_{2}}O\] The etching of glass is based on these reactions.
You need to login to perform this action.
You will be redirected in
3 sec
