Question

Give two examples for each of the following:

$\left(b\right)$ Crystalline anhydrous substances

Answer 1

The two examples of Crystalline anhydrous substances are
$\left(i\right)$ Common salt $\left(NaCl\right)$,
$\left(ii\right)$ potassium nitrate $\left(KN{O}_3\right)$

Anhydrous substances are those substances which do not contain water molecules (water of crystallization).

They may be crystalline in nature. For example, $NaCl$
They may be amorphous powdered solids. For example, calcium carbonate $\left(C{a}_{2}C{O}_3\right)$