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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: - Increase in boiling point of a sucrose solution is 0.1 K, then what is increases
- The ionisation energy of nitrogoen is more than that of oxygen because
- The rate of reaction between two reactants A and B decreases by a factor of
- The neutralisation of a strong acid by a strong base liberates an amount
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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
- Increase in boiling point of a sucrose solution is 0.1 K, then what is increases
- The ionisation energy of nitrogoen is more than that of oxygen because
- The rate of reaction between two reactants A and B decreases by a factor of
- The neutralisation of a strong acid by a strong base liberates an amount
- An organic compound gives Molisch’s test as well as Benedict’s test.
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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