Beautiful crystals arise from various chemical substances. A single chemical can, sometimes, give rise to different crystals because of different:
Different types of crystal system arised due to difference in the arrangement of atoms in the space.
The different relative spatial arrangement which arise because of rotation around the single bond is called:
Question 10
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and step II are: (a) physical and chemical changes respectively (b) chemical and physical changes respectively (c) both physical change (d) both chemical change