In the laboratory,sodium chloride is made by | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) When $NaCl$ is heated in an atmosphere of sodium vapor,sodium atoms deposit on the surface of the crystal. $Cl^{-}$ ions diffuse to the surface to

Vedclass · Accepted Answer

Presence of electrons in the crystal lattice

Vedclass · Answer

(C) When $NaCl$ is heated in an atmosphere of sodium vapor,sodium atoms deposit on the surface of the crystal. $Cl^{-}$ ions diffuse to the surface to combine with $Na$ atoms,creating anion vacancies. Electrons released by the ionization of $Na$ atoms occupy these anionic sites to maintain electrical neutrality. These trapped electrons,known as $F$-centers,absorb energy from visible light and impart a yellow color to the $NaCl$ crystal.

In the laboratory,sodium chloride is made by burning sodium in an atmosphere of chlorine. The resulting crystal is yellow in color. The cause of this yellow color is:

Similar Questions

For $NaCl$,the number of Schottky pairs per $cm^3$ at room temperature is

Electron-deficient impurities are caused by the elements of which group?

What type of crystal defect is indicated in the diagram below?
$Na^{+} \, Cl^{-} \, Na^{+} \, Cl^{-} \, Na^{+} \, Cl^{-}$
$Cl^{-} \, \Box \, Cl^{-} \, Na^{+} \, \Box \, Na^{+}$
$Na^{+} \, Cl^{-} \, \Box \, Cl^{-} \, Na^{+} \, Cl^{-}$
$Cl^{-} \, Na^{+} \, Cl^{-} \, Na^{+} \, \Box \, Na^{+}$

Explain stoichiometric defects shown by non-ionic solids.

Which is the correct statement?

Vedclass Test Series

Exam Paper Generator

Online Exam Module