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The lusture of a metal is due to
Options
(a) its chemical inertness
(b) its high polishing
(c) its high density
(d) presence of free electrons
Correct Answer:
presence of free electrons
Explanation:
The metals lusture is due to presence of mobile electrons in the metals crystals. Under the influence of light, the surface electrons absorb the proton of visible light and then re-emit the absorbed radiation. Therefore the surface of metal shows a shinning appearance.
Related Questions: - Rate determining step in nitration of bezene is
- Oxidation number of carbon in CH₂Cl₂ is
- Which one of the following is not a sulphide ore
- Which one gives secondary alcohol when treated with Grignard reagent
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Rate determining step in nitration of bezene is
- Oxidation number of carbon in CH₂Cl₂ is
- Which one of the following is not a sulphide ore
- Which one gives secondary alcohol when treated with Grignard reagent
- For an endothermic reaction, energy of activation is Ea and enthalpy of reaction
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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