Q. Melting points of covalent molecular solids is

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Q. belonging of valence electrons in a crystal in metallic bond, is to

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Q. Iodine which occurs at room temperature is

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Q. One of best example of amorphous solids is

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Q. Balls' layers in cube close packing which are in front of each other are

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Q. Ionic crystals which releases lattice energy are obtained from

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Q. Number of chloride ions per unit cell of NaCl are

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Q. 40.6 kilojoules per mole is molar heat of vaporization for

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Q. Packing of metals can be understood by taking example of packing of

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Q. Digital watches uses

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Q. Structure of ionic solids depends upon property of captions and anions which is

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Q. Look of diamond crystal is

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Q. Crystals of sodium nitrite are

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Q. Avogadro's number can be calculated by use of volume and

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Q. In crystal lattice unit cell is actually

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Q. Points which shows position of atoms in a crystal are called

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Q. Polarizability of fluorine is less than

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Q. London dispersion forces were explained in

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Q. Crystals which are formed by zinc oxide are

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Q. Two angles are of 90 degree in a crystal system, is called as

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