Multiple choice

In acid etching, gel form is preferred over solution form because:

  1. More concentrated action of acid

  2. Can be easily washed off

  3. Ease of placement over the area to be acid etched, without getting spread

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The gel form is preferred over the solution form as it is easier to keep it in one place without spreading.

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