Question:
Carnallite is a mineral containing
Carnallite is a mineral containing
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Carnallite is primarily used as a source of potassium for fertilizers and as an ore for the production of magnesium metal.
Updated On: May 1, 2026
- K
- Na
- Mg
- Fe
- (A) and (C)
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The Correct Option is
Solution and Explanation
Concept:
Mineralogy involves identifying the chemical composition of naturally occurring ores. Carnallite is an important hydrated double halide mineral.
Step 1: {Identify the chemical formula of Carnallite.}
Carnallite is a double salt with the chemical formula: $$KCl \cdot MgCl_2 \cdot 6H_2O$$
Step 2: {Analyze the elements present in the formula.}
From the formula, we can see the presence of:
• Potassium ($K$) from $KCl$
• Magnesium ($Mg$) from $MgCl_2$
• Chlorine ($Cl$) as the halide anion
• Hydrogen and Oxygen from the water of crystallization
Step 3: {Match with the options.}
Since the mineral contains both Potassium (A) and Magnesium (C), the correct choice is (E).
Step 1: {Identify the chemical formula of Carnallite.}
Carnallite is a double salt with the chemical formula: $$KCl \cdot MgCl_2 \cdot 6H_2O$$
Step 2: {Analyze the elements present in the formula.}
From the formula, we can see the presence of:
• Potassium ($K$) from $KCl$
• Magnesium ($Mg$) from $MgCl_2$
• Chlorine ($Cl$) as the halide anion
• Hydrogen and Oxygen from the water of crystallization
Step 3: {Match with the options.}
Since the mineral contains both Potassium (A) and Magnesium (C), the correct choice is (E).
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