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Question
Calcium carbonate is prepared in laboratories by ______.
Options
displacement method
decomposition method
direct combination method
double decomposition method
MCQ
Fill in the Blanks
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Solution
Calcium carbonate is prepared in laboratories by double decomposition method.
Explanation:
An insoluble salt like CaCO3 is prepared by mixing two soluble salt solutions (e.g., CaCl2 and Na2CO3), which exchange their radicals.
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