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Question
Which of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point?
Which of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point?
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Solution
The correct option is B Metallic bonding
Metals (metallic bonds) have these physical properties-
1) Metals reflect the photons of the visible spectrum (light) falling on their surface, thus metals are often silver-white or greyish with the characteristic specular reflection of metallic lustre.2) The electrical conductivity of metals decreases with a rise in temperature.3) Metals have a high melting point.
Metals (metallic bonds) have these physical properties-
1) Metals reflect the photons of the visible spectrum (light) falling on their surface, thus metals are often silver-white or greyish with the characteristic specular reflection of metallic lustre.
2) The electrical conductivity of metals decreases with a rise in temperature.
3) Metals have a high melting point.
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