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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: - An example of redox reaction
- The element with positive electron gain enthalpy is
- In the laboratory, manganese(II) salt is oxidised to permanganate ion in aqueous
- Which of the following is the IUPAC name of the compound
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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
- An example of redox reaction
- The element with positive electron gain enthalpy is
- In the laboratory, manganese(II) salt is oxidised to permanganate ion in aqueous
- Which of the following is the IUPAC name of the compound
- Unpleasent smelling carbylamines are formed by heating alkali and chloroform with
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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