Tag: solid state
Questions Related to solid state
The anionic sites occupied by unpaired electrons are called F-centers or colour centers. They impart ______ $(X)$ colour to the crystals on $NaCl.$ Excess of lithium makes $LiCl$ crystals ______ $(Y)$ and excess of potassium makes $KCl$ crystals ______ $(Z)$. $(X)$, $(Y)$ and $(Z)$ are:
$F-$centres are :
The incorrect statement is :
The correct statement regarding $F-$centre is:
The presence of excess sodium in sodium chloride makes the crystal appearance yellow. This is due to the presence of
Each of the following statement is correct except
In feldspar and zeolite, $Si^{4+}$ ions are replaced by which ions?
ZnO shows yellow colour on Heating due to:
Doping of $As$ with $Si$ is called :
An n-type semi-conductor is formed when a trace amount of impurity is added to silicon. The number of valence electrons in the impurity atom must be: