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Amorphous solid are...

Amorphous solid are

A

Supercooled liquid

B

Liquid in real sense

C

Solid substance in real sense

D

Substance with definite melting point

Text Solution

Verified by Experts

The correct Answer is:
A
Amorphous solids have ordered arrangement (i.e. no definite shape) nor have sharp melting point like crystals but when heater ,they becomes pliable untill they assume the properies usually related to liquid it is therefore they are regarded as supercooled liquids.
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Explore conceptually related problems

Select the correct statements. (A) Crystalline solids have long range order. (B) Crystalline solids are isotropic. (C) Amorphous solid are sometimes called pseudo solids. (D) Amorphous solids soften over a range of temperatures. (E) Amorphous solids have a definite heat of fusion. Choose the most appropriate answer from the options given below.

A : Amorphous solids are isotropic. R : Amorphous solids are not rigid.

Amorphous solids are

Amorphous solids are :

Amorphous solids are classified as

STATEMENT -1 : Amorphous solids are isotrophic STATEMENT -2 : Amorphous solids lack a regular three-dimensional arrangement of atoms.

Why amorphous solids are called as supercooled liquids?

Statement-1:Amorphous solids are isotropic Statement-2:Amorphous solids show physical properties like mechanical strength, electrical conductivity refractive index etc. same in all directions .

A2Z-SOLID STATE-Section D - Chapter End Test
  1. Amorphous solid are

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  2. The mass of unit cell of CaF(2) (fluorite structure) corresponds to

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  3. Close packing is maximum in the crystal which in the crystal which is

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  4. An ionic compound AB has ZnS type of structure if the radius A^(+) is ...

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  5. A pure crystallic substance , on being heated gradually first a hurbit...

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  6. Under which category iodine crystals are placed among the following

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  7. How many molecules are there in the unit cell of sodium chioride?

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  8. The structure of TICI is silmilar to CsCI .What would be the radius r...

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  9. Na and Mg crystallize in bcc- and fcc-type crystals, respectively, the...

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  10. In the closest packed struture of a metallic lattice , the number of m...

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  11. The number of atoms in 100 g an fcc crystal with density d = 10 g//cm^...

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  12. Potassium has a bcc structure with nearest neighour distance 4.52 Åits...

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  13. Ferrous oxide has cubes structure and each edge of the unit cell is 5....

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  14. In A^(+)B^(-) ionic compound radii of A^(=) and B^(-) ions are 180 "pm...

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  15. In the calcium fluoride structure, the coodination number of the catio...

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  16. Which of the following has Frenkel defect?

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  17. Which one of the following is the most correct statement?

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  18. The molecule having three fold axis of symmetry is :

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  19. In a f.c.c. arrangement of A and B atoms, where A atoms are at the cor...

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  20. In floorite structure (CaF(2))

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  21. A solid is made of two element X and Y .The atoms Z are in C CP arrang...

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