Selection of filter paper depends on size of particles to be________________?
Correct answer: A. filtered
- A. filtered
- B. dried
- C. decolorized
- D. decanted
Explanation
The grade and pore size of filter paper are selected according to the size of the solid particles that must be retained. Fine particles require finer pores, whereas coarse particles can be separated with faster, larger-pore paper. Students may choose b because filter paper is often used before drying, but drying is not the factor that determines its pore size.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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