Materials chemistry: Identify the main chemical constituent of common clay minerals. Clay (e.g., kaolinite) is composed primarily of alumino-silicates with water of crystallization. Choose the most appropriate constituent.
IIT JEE
Chemistry
Difficulty: Easy
Choose an option
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ACalcium carbonate
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BHydrated aluminium silicate
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CMagnesium oxide
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DFerric oxide
Answer
Correct Answer: Hydrated aluminium silicate
Explanation
Concept
Common clays such as kaolinite have composition approximated by Al2O3·2SiO2·2H2O (hydrated aluminium silicate).Final AnswerHydrated aluminium silicate.