Q. Polythene is solid at

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Q. The weak forces of attraction which exist in a molecule like Bromine are called

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Q. The noble gases which exist as isolated atoms are

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Q. When a covalent bond is formed between hydrogen and a very electronegative atom, then the bond is highly

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Q. Van der Waal's forces increase with the increase in

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Q. Noble gases are liquefied at

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Q. The strongest type of intermolecular force is called

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Q. The ability to attract the bond pair of electron towards itself of a covalently bond atom is called as

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Q. Electrons clouds are always moving hence creating temporary forces called

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Q. The greater the difference between electronegativities the more is the

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Q. The types of intermolecular forces are

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Q. Carbon monoxide is

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Q. Permanent dipole-dipole forces are present between two

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Q. The strength of an atom to attract electrons increases with the increase in

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Q. The bombardment of X-rays on molecules and measuring energy of electrons (e⁻) is done by method

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Q. The degree of the polarity of a molecule is measured as

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Q. A rigid lattice with more open arrangement of molecules is found in

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Q. Reactions are started by attacking on electrically charged end of polar molecule by

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Q. When the pair of electrons (e⁻) is equally shared due to same electronegativity between atoms, the covalent bond is

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Q. A needle float on water, upon adding detergent to water needle will

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