EASY
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Quartz is a crystalline variety of
 

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Important Questions on Solid State

EASY
Which of the following is NOT true about the amorphous solids?
MEDIUM
A metallic element has a cubic lattice. Each edge of the unit cell is2A°'. The density of the metal is 2.5g cm-3. The unit cell in 200g of the metal are
HARD
Define Anisotropy. Distinguish between crystalline solids and amorphous solids.
EASY
Give two differences between Crystalline and Amorphous solids.
MEDIUM
The number of voids in 1 mole of a compounds forming a hcp structure are
MEDIUM
The material that soften on heating to finally flow like a liquid is _____.
EASY
Write any two differences between crystalline and amorphous solids.
MEDIUM
How many Bravais lattices are possible in a crystal?
MEDIUM

Given below are two statements. One is labelled as
Assertion A and the other is labelled as Reason R.
Assertion A: Sharp glass edge becomes smooth on heating it up to its melting point.

Reason R: The viscosity of glass decreases on melting.

Choose the most appropriate answer from the options given below.

MEDIUM
Give two differences between Crystalline solids and Amorphous solids.
EASY
Which of the following statements is true with regards to crystalline solids?
MEDIUM
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.
MEDIUM
Which of the following is/are pseudo solids?
I. KCI
II. Barium chloride dihydrate
III. Rubber
IV. Solid cake left after the distillation of coal tar.
EASY
The correct statement about amorphous solids is
EASY
Which of the following is not a crystalline solid?