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The s-block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe s-block Elements5 Marks
Question
Describe the importance of the following:'
  1. Limestone.
  2. Cement.
  3. Plaster of paris.
✓

Answer

  1. Limestone: It is used,
  • In the manufacture of quick lime, slaked lime, cement, washing soda and glass,
  • As a flux in the smelting of iron and lead ores.
  1. Cement: It is an important building material. It is used in concrete and reinforced concrete, in plastering and in the construction of bridges, dams and buildings.
  2. Plaster of Paris : The largest use of plaster of Paris is in the building industry as well as plasters. It is used for immobilizing the affected part of organ where there is a bone fracture or sprain. It is also employed in dentistry, in ornamental work and for making casts of statues.

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