Mention the significance of Lenz’s law.


The significance of Lenz’s law is that it gives the magnitude and the direction of the electric current induced in the coli due to the change in magnetic flux in the coil.
The negative sign in the equation signifies that the electric current flows in a direction that the current opposes the change that causes it.

Final Answer:
The significance of Lenz’s law is that it gives the magnitude and the direction of the electric current induced in the coli due to the change in magnetic flux in the coil.

Boron has 2p-orbital vacancy thus halides forms back bonding

This back bonding decreases boron atom’s electron deficiency, and eventually its Lewis acid character diminishes

Thus, the strength of back bonding decreases as we move down the group from fluorine to iodine.