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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: - In diborane the two H-B-H angles are nearly
- Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- Replacement of Cl of chlorobenzene to give phenol requires drastic conditions.
- The C – C bond length in ethane is
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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
- In diborane the two H-B-H angles are nearly
- Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- Replacement of Cl of chlorobenzene to give phenol requires drastic conditions.
- The C – C bond length in ethane is
- The functional isomer of ethanol is
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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