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(A) Crystalline solids are anisotropic. ...

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

A

Both (R) and (A) are true and reason is the correct explanation of assertion.

B

Both (R) and (A) are true but reason is not correct explanation of assertion

C

Assertion (A) is true but reason (R) is false

D

Assertion (A) and reason (R) both are false

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The correct Answer is:
C
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Crystalline solid are

Crystalline solids have

Assertion: Crystalline solids are anisotropic. Reason: Cystalline solids are not as closely packed as ionic solids.

Crystalline solids have :

Why are crystalline solids anisotropic ?

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.

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

Characteristics of crystalline solid are

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