Predict the products of the following reactions:
$(i)$ $CH_3-CH_2-CH_2-O-CH_3 + HBr \rightarrow$
$(ii)$ $\text{Ethoxybenzene} + HBr \rightarrow$
$(iii)$ $\text{Ethoxybenzene} \xrightarrow{\text{Conc. } H_2SO_4 / \text{Conc. } HNO_3}$
$(iv)$ $(CH_3)_3C-O-C_2H_5 \xrightarrow{HI}$

(N/A) $(i)$ $CH_3-CH_2-CH_2-O-CH_3 + HBr \rightarrow CH_3-CH_2-CH_2-OH + CH_3-Br$
$(ii)$ $\text{Ethoxybenzene} + HBr \rightarrow \text{Phenol} + C_2H_5Br$
$(iii)$ $\text{Ethoxybenzene}$ $\xrightarrow{\text{Conc. } H_2SO_4 / \text{Conc. } HNO_3} \text{4-Ethoxynitrobenzene (Major)} + \text{2-Ethoxynitrobenzene (Minor)}$
$(iv)$ $(CH_3)_3C-O-C_2H_5 \xrightarrow{HI} (CH_3)_3C-I + C_2H_5OH$