Which of the following is polymorphic?A. Caesium chlorideB. Sodium chlorideC. Zinc sulphideD. Both (1) and (2)

Which of the following is polymorphic?A. Caesium chlorideB. Sodium chl

1.	Which of the following is polymorphic?A. Caesium chlorideB. Sodium chlorideC. Zinc sulphideD. Both (1) and (2)
Answer» Correct Answer - 3 A solid substance that can occur in more than one crystal structure is said to be polymorphic.Zince sulphide `(ZnS)` crystallizes in either of two structures .The Zinc sulphide minearl having cubic structure is called zinc blende (or sphalerite). Zinc sulphide also exists as hexagonal crystals.The mineral is called wurtzite.

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Which of the following is polymorphic?A. Caesium chlorideB. Sodium chlorideC. Zinc sulphideD. Both (1) and (2)

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