Question

Kaolinite is a silicate mineral of metal 'X' and calamine is a carbonate mineral of metal 'Y'. X and Y respectively are:

• A. Fe, Cu
• B. Zn, Al
• C. Al, Zn
• D. Zn, Cu
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Hint:

- Kaolinite (\( Al_2Si_2O_5(OH)_4 \)) is a silicate mineral of Aluminium.
- Calamine (\( ZnCO_3 \)) is a carbonate mineral of Zinc.

Answer 1

The Correct Option is C

Step 1: Understanding Kaolinite (\( X \))
- Kaolinite is a silicate mineral that contains Aluminium (Al).
- The chemical formula of kaolinite is \( Al_2Si_2O_5(OH)_4 \).
- Since Aluminium (Al) is the primary metal present in kaolinite, X = Al.
Step 2: Understanding Calamine (\( Y \))
- Calamine is a carbonate mineral that contains Zinc (Zn).
- The chemical formula of calamine is \( ZnCO_3 \) (Zinc carbonate).
- Since Zinc (Zn) is the primary metal present in calamine, Y = Zn.
Step 3: Identifying the Correct Option
- X = Al, Y = Zn matches Option (3). ✅
- The other options contain incorrect metal assignments.
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