Which of the following compounds crystallizes without water of crystallization?
Answer Details
The compound that crystallizes without water of crystallization is NaCI (sodium chloride). When some compounds crystallize, they form a specific number of water molecules as part of their crystal structure. These water molecules are called water of crystallization. For example, CuSO4⋅5H2O means that each CuSO4 unit is bonded to 5 water molecules. However, NaCI does not form water of crystallization when it crystallizes. Instead, the sodium ions (Na+) and chloride ions (CI-) bond together in a lattice structure without any water molecules. This is why NaCI is known as an anhydrous compound. Therefore, the compound that crystallizes without water of crystallization is NaCI.