Calcium carbonate can crystallize as calcite or as aragonite, having different crystal systems. These are called:
A
polymorphs
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B
polymers
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C
isomers
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D
mirror images
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Solution
The correct option is A polymorphs Calcium carbonate can crystallize as calcite or as aragonite having different crystal systems. These are called polymorphs. Polymorphism is crystallography in which solids have different crystal forms.