Crystalline Forms and Products of Crystallization Quiz

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Which factor does NOT influence the crystal habit of a substance during crystallization?

Pressure applied (correct)

Presence of impurities

Solvent used

Temperature

Which physical property of crystals can significantly affect the production of dosage forms?

Crystal sound

Crystal shape (correct)

Crystal color

Crystal taste

What term is used to describe a unit cell with a single atom in the centre?

End-centred

Central-centred

Face-centred

Body-centred (correct)

Under what conditions does Ibuprofen typically produce crystals with better flow properties?

Crystallization from methanol Signup and view all the answers

Which crystal habit shape is described as needle-like?

Acicular Signup and view all the answers

What term is used to describe crystals with a single atom at the center of the top or bottom faces?

End-centred Signup and view all the answers

What defines a unit cell in a crystal lattice?

The arrangement of molecules or ions within it Signup and view all the answers

In a centered unit cell, where are constituent particles present?

At positions other than corners in addition to corners Signup and view all the answers

What type of unit cell do crystals have when their constituent particles are only at the corner positions?

Primitive unit cells Signup and view all the answers

How are crystals of a given substance bound together?

By plane surfaces called faces Signup and view all the answers

What type of unit cell structure do drug molecules typically form?

Monoclinic unit cells Signup and view all the answers

What influences the crystal habits of a substance?

The size of the molecules or ions in the lattice Signup and view all the answers

Which process is mostly used to achieve supersaturation of solute in a solution during crystallization?

Cooling Signup and view all the answers

What is the difference between an amorphous solid and a crystalline solid?

Crystalline solids have a highly ordered array of constituents, while amorphous solids do not. Signup and view all the answers

What is the primary factor influencing the formation of crystalline solids when most liquids are cooled?

Temperature drop Signup and view all the answers

What are the constituents that make up a crystal or crystalline solid?

Highly ordered array of constituents forming a three-dimensional network Signup and view all the answers

How is crystal growth achieved during the crystallization process?

By transferring solute from the solution to the crystal state through a dissolution process Signup and view all the answers

What term describes the collection of lattice points that form the three-dimensional arrangement in a crystal lattice?

Lattice sites Signup and view all the answers