How does a dielectric differ from an insulator

How does amorphous silica differ from quartz?

How does an ideal gas differ from a real gas?

Name the product of fertilization that forms the kernel of coconut. How does the kernel differ from coconut water?

How do antiseptics differ from disinfectants? Give one example of each

Consider a zener diode with the breakdown voltage 6.2V.How is zener diode different from an ordinary diode?