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- Please,please help me Which of the following are crystalline solid ?
Which of the following are crystalline solid ?
- Option 1)
NaCl , KCl , Diamond
- Option 2)
NaCl , Rubber , Glass
- Option 3)
Diamond , Plastic , NaCl
- Option 4)
KNO3 , Glass , Quartz
Answers (1)
As we learnt in
Crystalline solid -
Solid in which constituent particles are arranged in a definite regular order upto infinite array in three dimension. It is anisotropic and have sharp melting point.
- wherein
Ex. NaCl, diamond
Crystalline solids have regular arrangement of constituent particles but amorphous solid like glass, rubber, plastic have irregular arrangement. So NaCl, KCl & Diamond are crystalline solid.
Option 1)
NaCl , KCl , Diamond
Correct
Option 2)
NaCl , Rubber , Glass
Incorrect
Option 3)
Diamond , Plastic , NaCl
Incorrect
Option 4)
KNO3 , Glass , Quartz
Incorrect
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