00:01
First of all, what do we mean by polar protic solvent? so, polar protic solvents are polar solvents that have at least one hydrogen that is connected directly.
01:13
To a particular electronegative atom such as oh or nh, that is the oxygen -hydrogen bond or nitrogen -hydrogen bond, etc.
02:08
And are capable to form hydrogen bonding.
02:45
With solute.
02:53
So now from this discussion we know that hydrogen bonding is the important thing here.
03:02
Okay.
03:03
That is the important part.
03:05
So here polar proteic solvent can lead to hydrogen bonding with solute.
03:12
Okay.
03:13
Now we have nucleophile here in the options.
03:16
Okay.
03:17
So that are all halogens, okay, fluorine, chlorine, chlorine, bromine.
03:21
Iodine that is from group 17 and i hope you know that group 17 fluorine chlorine bromine iodine so down the group electronegativity decreases so electro negativity is what it is the nature to it is a tendency to withdraw the bone pair of electrons towards itself.
04:06
Okay.
04:08
And the atomic size increases...