Addition of KI accelerates the hydrolysis of primary haloalkanes because
KI is soluble in organic solvent
I- is a strong base
I-is a weak base and a poor leaving group
I- is a powerful nucleophile as well as a good leaving group
Strong nucleophiles and high polar solvents favour substitution reactions. I- is a strong nucleophile.
The number of structural isomers of C4H9Cl that are primary haloalkane are: