Question:

Acid Mine Drainage (AMD) is mainly caused due to oxidation of

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Acid Mine Drainage is mainly due to the oxidation of \[ \boxed{\text{Pyrite }(FeS_2).} \]
Updated On: Jul 14, 2026
  • Calcite
  • Quartz
  • Pyrite
  • Feldspar
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The Correct Option is C

Solution and Explanation

Step 1: Recall the cause of Acid Mine Drainage (AMD). Acid Mine Drainage is produced when sulphide minerals react with oxygen and water, generating sulphuric acid.

Step 2:
Identify the responsible mineral. The most common sulphide mineral responsible for AMD is \[ \boxed{\text{Pyrite }(FeS_2).} \] Its oxidation produces sulphuric acid and dissolved iron. Hence, \[ \boxed{(C)} \] is the correct answer.
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