Consider the compounds, `BCl_(3)` and `C Cl_(4)`.How will they behave with water? Justify.

Explanation

In `BCl_(3)` (B atom is `sp^(2)` hybridised) the B atom has incomplete octer and unhybridised 2p-orbital which can take up electron pair from the `H_(2)O` molecule to form additio product.

In this way, a Cl atom has been replaced by OH group on reacting with water. Similarly, the other two Cl atoms will also be replaced by the OH grops as follows:

This shows that boron trichloride has undergone hydrolysis. but this is not possible with carbon tetrachloride `(C Cl_(4))`. the carbon atom has a complete octet and there is no scope of forming addition product with `H_(2)O` molecuels. As a result, carbon tetrachloride does not get hydrolysed. when added to water, it even does not mix and forms a separate oily layer.