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Which acid is commonly used in the pickling process of metals?

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Question: Which acid is commonly used in the pickling process of metals?

Options:

  1. Sulfuric acid
  2. Hydrochloric acid
  3. Nitric acid
  4. Acetic acid

Correct Answer: Hydrochloric acid

Solution: 

Hydrochloric acid is commonly used in the pickling process to remove rust and scale from metals.

Which acid is commonly used in the pickling process of metals?

Practice Questions

Q1
Which acid is commonly used in the pickling process of metals?
  1. Sulfuric acid
  2. Hydrochloric acid
  3. Nitric acid
  4. Acetic acid

Questions & Step-by-Step Solutions

Which acid is commonly used in the pickling process of metals?
  • Step 1: Understand what pickling means. Pickling is a process used to clean metals.
  • Step 2: Know that pickling removes rust and scale from the surface of metals.
  • Step 3: Identify the common acid used in this process. The acid is hydrochloric acid.
  • Step 4: Remember that hydrochloric acid helps to effectively clean the metal surfaces.
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