Multiple choice

Which of the following is used to remove oxide film from steel pot before galvanization?

  1. NaCl

  2. KCl

  3. HCl

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrochloric acid (HCl) is used in the pickling process to remove oxide films (rust) from steel surfaces before galvanization.