For the synthesis of $but-1-ene$,$CH_3MgI$ should be treated with:

What is the product of the reaction: $CH_3-CH=CH_2 \xrightarrow{NOCl}$?

The major product of the following addition reaction is: $CH_3-CH=CH_2 \xrightarrow{Cl_2/H_2O}$

Consider the following reactions:
$X + HCl \xrightarrow{\text{Anhydrous } AlCl_3} C_2H_5Cl$ (Addition)
$Y \xrightarrow{\text{Anhydrous } ZnCl_2 / HCl} C_2H_5Cl$ (Substitution)
$Y$ can be converted to $X$ on heating with $...$ at $...$ temperature:

Peroxide effect is observed with the addition of $HBr$ but not with the addition of $HI$ to unsymmetrical alkene because

The major product formed during the reaction of $1$-methylcyclopentene with $CH_3CO_3H$ is