CRYSTALLINE AND AMORPHOUS SOLIDS

This type of soilds have ordered internal structures.

• Crystalline solids

• Amorphous solids

• Pseudo solids

• Supercooled liquids

Which of the following cannot be used as an analogy for the unit cell and crystal lattice?

• brick and wall

• cell and tissue

• key and lock

It is the smallest repeating structure of solids

• Unit cell

• lattice

• crystal

• cell

It is the network formed from the combination of unit

cells.

• Unit cell

• Crystal Lattice

• Shape

• Rigidity

What is an amorphous solid?

• Solid that does not has ordered internal structure

• Solid that has a crystal lattice

• Solid that cannot change its state

Wood is a solid that has different values of refractive index. What type of solid is it, and what property is being exhibited ?

• Amorphous-Anisotropy

• Crystalline- Anisotropy

• Crystalline- Isotropy

• Amorphous-Isotropy

Minerals like feldspar, calcite, and halite are

• Amorphous solids

• Crystalline solids

• none of these

• a special type of solids

Halite is a crystalline solid. Which means

• Its structure is not symmetrical

• It exhibits isotropy

• It can be compressed

• It has a sharp melting point

What does it mean when a solid has a sharp melting point?

• It will turn into a gaseous state at a defined value of temperature

• It will melt over a range of temperature

• It will completely melt at a fixed value of temperature

• It will have sharp edges before it turns to liquid

Cotton candy is a/an..

• amorphous solid that has an unsymmetrical lattice pattern

• amorphous solid that has a symmetrical lattice pattern

• crystalline solid that has an unsymmetrical lattice pattern

• crystalline solid that has a symmetrical lattice pattern