Which among the following acids is commonly used for etching and frosting glass?
A) hydrochloric acid
B) nitric acid
C) hydrofluoric acid
D) hydrobromic acid
E) All of the above are used.
Answer: C
Which among the following acids is commonly used for etching and frosting glass?
A) hydrochloric acid
B) nitric acid
C) hydrofluoric acid
D) hydrobromic acid
E) All of the above are used.