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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: - The reaction of primary amine with chloroform and ethanolic KOH, is called
- The oxidation number of As in H₂AsO₄⁻ is
- Numbers of moles of K₂Cr₂O₇ reduced by one mole os Sn²⁺
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
- Which one of the following is not an aldose
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The reaction of primary amine with chloroform and ethanolic KOH, is called
- The oxidation number of As in H₂AsO₄⁻ is
- Numbers of moles of K₂Cr₂O₇ reduced by one mole os Sn²⁺
- Which one of the alkali metals, forms only, the normal oxide, M₂O on heating
- Which one of the following is not an aldose
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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