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The statement that, .. That crystals of ...

The statement that, .. That crystals of same substance can have different shapes depending upon the number and size of faces but the angle between the corresponding faces remains constant .. is known as :

A

Hauy's law of rationality of indices

B

The law of constancy of interfacial angles

C

The law of constancy of symmetry

D

None

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The correct Answer is:
B
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  15. The example of ortho silicate is :

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  19. Which is an example of ferroelectric compound ?

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