Question : Which one of the following is used in large quantities in Cement Industry ?
Option 1: Gypsum
Option 2: Limestone
Option 3: Coal
Option 4: Clay
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Correct Answer: Limestone
Solution : The correct option is limestone.
The cement industry makes extensive use of limestone. It is a key component in the manufacture of cement. The process includes heating limestone and other minerals at high temperatures to produce "clinker," which is then crushed into a fine powder to form cement. This cement serves as a binder in concrete and other building materials. While the other minerals listed (clay, gypsum, and coal) are also needed in cement manufacturing, limestone is a particularly important component since it provides the calcium oxide required for the chemical reactions that occur during the cement-making process.
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Question : The chemical composition of cement is
Option 1: Limestone and Clay
Option 2: Limestone, Clay and Gypsum
Option 3: Limestone and Iron
Option 4: Clay and Gypsum
Question : Which one of the following is igneous rock ?
Option 1: limestone
Option 2: granite
Option 3: marble
Option 4: slate
Question : White lung disease is prevalent among the workers of :
Option 1: Paper industry
Option 2: Cement industry
Option 3: Cotton industry
Option 4: Pesticide industry
Question : Which of the following resources is renewable one ?
Option 1: Uranium
Option 2: Coal
Option 3: Timber
Option 4: Natural Gas
Question : The polymerisation of which of the following is used in manufacturing of polythene in industry?
Option 1: Methane
Option 2: Styrene
Option 3: Acetylene
Option 4: Ethylene
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