Q. Compound which has existence in more than 1 crystalline form is

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Q. Closely spaced states in metallic bonds are called

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Q. Among halogens heat of vaporization is maximum for

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Q. Number of electrons present in sodium ions is

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Q. Low volatility is a characteristic of

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Q. Rhombohedral and orthorhombic crystalline forms are characteristic of

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Q. Atom which must be present in hydrogen bonding is

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Q. Exact position of atoms in molecular solids can be determined by

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Q. In ionic solids crystals are formed of negatively and positively charged

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Q. Example of giant molecule having covalent bond is

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Q. Water will boil at 69 degree Celsius at

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Q. Greater number of atoms in a non polar molecule will increase

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Q. In rhombohedral system all angles are of

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Q. Zinc crystals are

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Q. In a unit cell of common salt units of NaCl are

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Q. Grey tin occurs in

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Q. Carbon tetrachloride has boiling point of

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Q. Temperature sensing can be done by use of

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Q. Change in energy of matter shows strength of intermolecular forces as it is

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Q. Heat change if occurs at constant pressure is called as

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