Which of the following is industrially prepared by passing ethylene into hypochlorous acid?

Predict the major product for the following reaction:
$m-CH_3O-C_6H_4-CH_2CH_2-O-CH(CH_3)Ph \xrightarrow{HI (excess), \text{heat}} ?$

Write the equations for the reaction of hydrogen iodide with:
$(i)$ $1-propoxypropane$
$(ii)$ $methoxybenzene$
$(iii)$ $benzyl \ ethyl \ ether$

Consider the following reaction:
Statement $I$: In the above reaction, the product formed will be a mixture of benzyl alcohol and iodobenzene.
Statement $II$: In the above reaction, the $-O-CH_2-$ bond is cleaved to give the product.
In the light of the above statements, choose the correct answer from the options given below:

What are the major products from the following reaction?
$C_6H_5-O-CH_2-C_6H_5 + HI \xrightarrow{\text{heat}} ?$
$(I) C_6H_5I + C_6H_5CH_2OH$
$(II) C_6H_5OH + C_6H_5CH_2I$
$(III) C_6H_5OCH_2OH + C_6H_5I$
$(IV) C_6H_5OCH_2I + C_6H_5OH$

The following is not an appropriate reaction for the preparation of $t$-butyl ethyl ether:
$C_2H_5ONa + CH_3-C(CH_3)_2-Cl \to CH_3-C(CH_3)_2-O-C_2H_5$
$(i)$ What would be the major product of this reaction?
$(ii)$ Write a suitable reaction for the preparation of $t$-butyl ethyl ether.