Home » mcq » Civil engineering » Building materials » Pick up the correct statement from the following: A. The heating of a material to redness in contact with air, is known as calcination B. The property of lime by which it sets or hardens in damp places having no free circulation of air is called setting C. The product that remains after calcination of limestone, is called lime D. All the above
The heating of a material to redness in contact with air, is known as calcination
The property of lime by which it sets or hardens in damp places having no free circulation of air is called setting
The product that remains after calcination of limestone, is called lime
All the above
Answer is Wrong!
Answer is Right!
The correct answer is D. All the above.
Calcination is the heating of a material to redness in contact with air,
64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/>
Subscribe on YouTube
or in the absence of air, to drive off volatile matter. The product that remains after calcination of limestone is called lime. Lime is a white or grayish-white powder that is used in a variety of applications, including construction, agriculture, and water treatment.
The property of lime by which it sets or hardens in damp places having no free circulation of air is called setting. This property is due to the reaction of lime with water to form calcium hydroxide, which is a solid.
Therefore, all of the statements in the question are correct.