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Which of the following account for the malleability and ductility of metals?

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Important Questions on Chemical Bonding and Structure

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Malleability and ductility of metals can be accounted due to
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The element which forms ions in dimeric state is
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Name the non-metal which helps in conduction of heat.
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Valence bond theory of metallic bond was given by
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One of the characteristic properties of metals is that they
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Which one of the following has strongest metallic bonding?
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If K= thermal conductivity, the value of thermal resistivity
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Two litres of water (density = 1 g mL-1) in an open lid insulated kettle is heated by an electric heater of power 1 kW. The heat is lost from the lid at the rate of 160 J s-1. The time taken for heating water (Specific heat capacity 4.2 kJ K-1 kg-1) from 20oC to 75oC is
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In case of an ideal insulator, the thermal conductivity K is
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Two rods of equal lengths and areas of cross-section are kept parallel and hanged between temperatures 20 and 80. The ratio of the effective thermal conductivity to that of the first rod is (the ratio=K1K2 =34 )
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Which of the following is/are observed in metallic bonds?
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Which of the following does not apply to metallic bond?
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Which of the following explain the property of metallic lustre?
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The conductivity of the metal decreases with increases in temperature because
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Which of the following does not apply to bonding in metals ?