Which of the following acids is used for etching glass?
Correct answer: C. Hydrofluoric Acid
- A. Hydrochloric Acid
- B. Nitric Acid
- C. Hydrofluoric Acid
- D. Sulphuric Acid
- E. Acetic Acid
Explanation
HF etching is capable of etching materials such as amorphous silicon dioxide; quartz and glass at very high etch rates. Since HF etching is a wet process, meaning that it uses chemicals, it creates an isotropic etch. This means that there are curved etched out sections under the etching mask.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
Practise Acids, Bases and Salts
314 free Acids, Bases and Salts MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.