Which of the following ethers is gaseous at room temperature?

When diethyl ether is reacted with an excess of chlorine in the presence of sunlight,what is the final product obtained?

An ether is heated with phosphorus pentasulphide to give:

How is $1-$propoxypropane synthesized from propan$-1-$ol? Write the mechanism of this reaction.

Consider the following reaction.
$C_6H_5-O-CH_2-C_6H_5 + HI \rightarrow \text{Product}$
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:

Which product is formed when sodium phenoxide is heated with ethyl iodide?