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प्रश्न
Account for the following:
Zinc is a comparatively a soft metal, iron and chromium are typically hard.
उत्तर
Iron and Chromium are having high enthalpy of atomization due to the presence of unpaired electrons, which accounts for their hardness. However, Zinc has low enthalpy of atomization as it has no unpaired electron. Hence zinc is comparatively a soft metal.
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