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In qualitative analysis, which reagent is commonly used to test for the presence

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Question: In qualitative analysis, which reagent is commonly used to test for the presence of sulfate ions?

Options:

  1. Barium chloride
  2. Silver nitrate
  3. Hydrochloric acid
  4. Sodium hydroxide

Correct Answer: Barium chloride

Solution: 

Barium chloride is used to test for sulfate ions, forming a white precipitate of barium sulfate.

In qualitative analysis, which reagent is commonly used to test for the presence

Practice Questions

Q1
In qualitative analysis, which reagent is commonly used to test for the presence of sulfate ions?
  1. Barium chloride
  2. Silver nitrate
  3. Hydrochloric acid
  4. Sodium hydroxide

Questions & Step-by-Step Solutions

In qualitative analysis, which reagent is commonly used to test for the presence of sulfate ions?
  • Step 1: Understand that we are looking for a reagent to test for sulfate ions in a solution.
  • Step 2: Identify that barium chloride is the common reagent used for this test.
  • Step 3: Add barium chloride to the solution that may contain sulfate ions.
  • Step 4: Observe the reaction; if sulfate ions are present, a white solid will form.
  • Step 5: This white solid is barium sulfate, confirming the presence of sulfate ions.
  • Qualitative Analysis – The process of determining the presence of specific ions or compounds in a sample.
  • Sulfate Ion Testing – The use of barium chloride to identify sulfate ions through the formation of a precipitate.
  • Precipitation Reaction – A chemical reaction that results in the formation of an insoluble solid from soluble reactants.
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