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The flame colours of metals ions are due to
Options
(a) Frenkel deffect
(b) Schottky defect
(c) Metal deficiency defect
(d) Metal excess defect
Correct Answer:
Metal excess defect
Explanation:
The flame colours of metal ions are due to metal excess defect. These type of crystals are generally coloured.This is due to the presence of free electrons. These electrons get excited easily to higher energy levels by absorption of certain wave lengths from the visible light and therefore, the compounds appear coloured.
Related Questions: - Glycerol on treated with oxalic acid gives
- In third group, iron gives blood red colouration with ammonium thiocyanate
- Number of molecules in one litre of water is close to
- Optical activity is measured by
- Which one among the following contains a phenolic -OH group
Topics: Solid State and Solutions
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Glycerol on treated with oxalic acid gives
- In third group, iron gives blood red colouration with ammonium thiocyanate
- Number of molecules in one litre of water is close to
- Optical activity is measured by
- Which one among the following contains a phenolic -OH group
Topics: Solid State and Solutions (91)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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