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Question

Decomposition of limestone to quick lime and carbon dioxide is an example of which of the following types of reaction?

The correct answer is

Thermal decomposition

The decomposition of limestone (CaCO3) to quicklime (CaO) and carbon dioxide (CO2) is an example of a thermal decomposition reaction. This is a type of chemical reaction where a compound breaks down into two or more components when heated. In this case, heat causes limestone to decompose into quicklime and carbon dioxide gas.

The chemical equation for this reaction is as follows:

CaCO3 (s) → CaO (s) + CO2 (g)

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Important Questions from Chemistry

  1. Suppose a rod is given a negative charge by rubbing it with wool. Which one of the following statements is correct in this case?

  2. The raw materials used for the manufacture of Portland cement are

  3. In which one of the following folds is the axial plane found to be virtually horizontal?

  4. Which one of the following is the chemical formula of Washing Soda?

  5. How is carbon black obtained?

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