What is the product formed when $n$-propyl bromide is reacted with ethanolic potassium hydroxide?

Increasing the concentration of a nucleophile in a typical $S_N2$ reaction by a factor of $10$ will cause the reaction rate to

In the presence of light,chloroform is slowly oxidised by air to form:

On what factors does the rate (reactivity) of the $S_{N}1$ reaction depend? Explain with suitable examples.

Assertion $A:$ Hydrolysis of an alkyl chloride is a slow reaction but in the presence of $NaI$,the rate of the hydrolysis increases.
Reason $R:$ $I^{-}$ is a good nucleophile as well as a good leaving group.
In the light of the above statements,choose the correct answer from the options given below.

The product of which of the following reactions undergoes hydrolysis by the $S_N 1$ mechanism?