Question:
Which one is not correctly matched?
Which one is not correctly matched?
Show Hint
Cuprite = \(Cu_2O\). Malachite = \(CuCO_3\cdot Cu(OH)_2\).
Updated On: Apr 29, 2026
- Siderite -- \(FeCO_3\)
- Calamine -- \(ZnCO_3\)
- Sphalerite -- \(ZnS\)
- Kaolinite -- \([Al_2(OH)_4Si_2O_5]\)
- Cuprite -- \(CuCO_3 \cdot Cu(OH)_2\)
Show Solution
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The Correct Option is
Solution and Explanation
Concept:
Ores have fixed chemical compositions. Cuprite is an oxide ore of copper.
Step 1: Recall composition of cuprite.
Cuprite is: \[ Cu_2O \]
Step 2: Check given composition.
The given formula: \[ CuCO_3 \cdot Cu(OH)_2 \] is basic copper carbonate, not cuprite.
Step 3: Conclusion.
Therefore, the incorrectly matched pair is cuprite with \(CuCO_3 \cdot Cu(OH)_2\).
Step 1: Recall composition of cuprite.
Cuprite is: \[ Cu_2O \]
Step 2: Check given composition.
The given formula: \[ CuCO_3 \cdot Cu(OH)_2 \] is basic copper carbonate, not cuprite.
Step 3: Conclusion.
Therefore, the incorrectly matched pair is cuprite with \(CuCO_3 \cdot Cu(OH)_2\).
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