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Refractive Index of a Solid is Observed to Have the Same Value Along All Directions. Comment on the Nature of this Solid. Would It Show Cleavage Property? - Chemistry

Refractive index of a solid is observed to have the same value along all directions. Comment on the nature of this solid. Would it show cleavage property?

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Solution 1

An isotropic solid has the same value of physical properties when measured along different directions. Therefore, the given solid, having the same value of refractive index along all directions, is isotropic in nature. Hence, the solid is an amorphous solid.

When an amorphous solid is cut with a sharp edged tool, it cuts into two pieces with irregular surfaces.

Solution 2

As the solid has same value of refractive index along all directions, it is isotropic in nature and hence amorphous. Being amorphous solid, it will not show a clean cleavage and when cut, it will break into pieces with irregular surfaces.

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NCERT Class 12 Chemistry Textbook
Chapter 1 The Solid State
Q 5 | Page 4
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