Multiple choice general knowledge science & technology

Brown ring test is done for____

  1. sulphate detection

  2. nitrate detection

  3. chlorine detection

  4. sulpher detection
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The brown ring test is a qualitative test for detecting nitrate ions (NO3-). When concentrated H2SO4 is carefully added to a mixture of the test solution and freshly prepared FeSO4 solution, a brown ring of [Fe(NO)(H2O)5]2+ forms at the junction of the two liquids, confirming nitrate presence.

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