Question

Amorphous substances show:
(A) Short and long-range order
(B) Short-range order
(C) Long-range order
(D) Have no sharp M.P.
A. A and C are correct
B. B and C are correct
C. C and D are correct
D. B and D are correct

Answer 1

Hint: An amorphous solid is deficient in ordered interior structure.
Instances consist of glass, rubber, and plastics.
The physical properties of amorphous solids are different from crystalline solids.

Complete step-by-step solution:Solids possess a vast three-dimensional structure of atoms, ions, or molecules in which the constituents are normally set in their positions.
The constituents can be organized in a regular repeating three-dimensional display forming a crystalline solid and if the structure is arranged randomly, it creates an amorphous solid.
Crystalline solids possess perfect edges and faces and tend to maintain sharp melting points.
But amorphous solids maintain unstable or curved surfaces. This has short-range order.
It undergoes melting over a broad spectrum of temperatures.
These solids maintain an uneven configuration of solid particles.
The intermolecular forces are not different at different points of the structure.
The space between every two particles differs. They do not maintain a defined form. These solids are also called supercooled liquids and are isotropic.
Isotropism means retaining a physical property that maintains an identical value when estimated in distinct directions.
Examples are glass, naphthalene, etc.
So, amorphous solids have short-range order and have no sharp M.P.
So, options B and D are correct.

So, option D is correct.

Note: Glass is widely utilized for the construction of establishments.
It is also utilized in the packaging of cosmetics like makeup boxes and the stuffing of food items like in creating food jars.
It has a wide range of use in the cosmetic industry as mirrors of all sizes.
It is utilized to consider other items that are not instantly watchable due to obstructions like rear-view mirrors, security mirrors, and dentist's mirrors.
It is also utilized in optic and scientific devices like telescopes, lasers, cameras, periscopes, and industrial machinery.