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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: - If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- In the reaction with HCl, an alkene reacts in accordance with the Markovnikov’s
- All the s-block elements of the periodic table are placed in the groups….
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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
- If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
- In the reaction with HCl, an alkene reacts in accordance with the Markovnikov’s
- All the s-block elements of the periodic table are placed in the groups….
- Which of the following pairs of ions are isoelectronic and isostructural
- In which of the following reaction Kp > Kc
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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