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Crystalline solids have...

Crystalline solids have

A

short range order only

B

long range order only

C

neither short range nor long range order

D

both short range and nor long range order

Text Solution

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The correct Answer is:
4

We can distinguish crystalline and amorphous solids by the presence or absence of long range order on the molecular scale,Long range order usually is visible to the unaided eye is crystalline solids which occur in characteristics shapes called crystals ,The existence of crystals is a consequence of long range order,or repetitions or glasses do not have the crystalline from and the accompanying long range atomic order of crystalline solids.They have only short range order which is possessed by crystals also.
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Solids have properties like rigidity a definite shape and a define volume. If intermolecular forces are greater than thermal energy, substances exist as solid. Solids can be classified into two types. Crystalline solids and amorphous solids, Crystalline solids have regular arrangement of particles, definite geometric shapes, sharp melting points and definite heat of fusion. They are anisotropic and undergo clean cleavage. On the other hand, amorphous solid have no regular arrangement of particles, irregular shapes, melt over a range of temperature, no definite heat of fusion. They are isotropic and undergo irregular cleavage. The melting point of crystalline solids is sharp due to:

Solids have properties like rigidity a definite shape and a define volume. If intermolecular forces are greater than thermal energy, substances exist as solid. Solids can be classified into two types. Crystalline solids and amorphous solids, Crystalline solids have regular arrangement of particles, definite geometric shapes, sharp melting points and definite heat of fusion. They are anisotropic and undergo clean cleavage. On the other hand, amorphous solid have no regular arrangement of particles, irregular shapes, melt over a range of temperature, no definite heat of fusion. They are isotropic and undergo irregular cleavage. Solid X is very hard, electrical insulator in solid as well as molten state and melts at extremely high temperature. Name the type of solid is it?

Name the three of crystalline solids having the formula AB.

(A) Crystalline solids are anisotropic. (R) Crystalline solids are not as closely packed as amorphous solids.

Crystalline solids are called true solids.Why ?

Assertion (A) : Crystalline solids are anisotropic in nature. Reason (R) : Crystalline solids melt at a sharp and characteristic temperature.

Crystalline solid are

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